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Complete the square – Easy

Last updated: 20/07/2021

GCSE Maths – Higher By completing the square Complete the square – Easy

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Question 1 of 50

1. Question
Solve x² + 36x = 0
- x = 0, x = -36
- x = √648 – 18
- x = √324 + 18
- x = 0, x = -18
Correct

Incorrect
Question 2 of 50

2. Question
Solve x² + 40x = 0
- x = 0, x = -40
- x = √400 + 20
- x = 0, x = -20
- x = √800 – 20
Correct

Incorrect
Question 3 of 50

3. Question
Solve x² – 48x = 0
- x = 0, x = 48
- x = √576 + 24
- x = √1152 – 24
- x = 0, x = 24
Correct

Incorrect
Question 4 of 50

4. Question
Solve x² + 32x = 0
- x = 0, x = -32
- x = 0, x = -16
- x = √512 – 16
- x = 0, x = 32
Correct

Incorrect
Question 5 of 50

5. Question
Solve x² + 20x = 0
- x = 0, x = -20
- x = √200 – 10
- x = 0, x = -10
- x = 0, x = 20
Correct

Incorrect
Question 6 of 50

6. Question
Solve x² + 56x = 0
- x = 0, x = -56
- x = √392 – 28
- x = 0, x = -28
- x = √1568 – 28
Correct

Incorrect
Question 7 of 50

7. Question
Solve x² + 44x = 0
- x = 0, x = -44
- x = 0, x = 44
- x = √242 – 22
- x = √484 + 22
Correct

Incorrect
Question 8 of 50

8. Question
Solve x² + 4x = 0
- x = 0, x = -4
- x = √2 – 2
- x = 0, x = 4
- x = 0, x = -2
Correct

Incorrect
Question 9 of 50

9. Question
Solve x² – 16x = 0
- x = 0, x = 16
- x = 0, x = -16
- x = 0, x = 8
- x = √128 – 8
Correct

Incorrect
Question 10 of 50

10. Question
Solve x² – 28x = 0
- x = 0, x = 28
- x = 0, x = 14
- x = √392 – 14
- x = √196 + 14
Correct

Incorrect
Question 11 of 50

11. Question
Solve x² – 12x = 0
- x = 0, x = 12
- x = 0, x = -12
- x = 0, x = 6
- x = √18 – 6
Correct

Incorrect
Question 12 of 50

12. Question
Solve x² + 60x = 0
- x = 0, x = -60
- x = √1800 – 30
- x = 0, x = -30
- x = 0, x = 60
Correct

Incorrect
Question 13 of 50

13. Question
Solve x² – 44x = 0
- x = 0, x = 44
- x = 0, x = -44
- x = 0, x = 22
- x = √242 – 22
Correct

Incorrect
Question 14 of 50

14. Question
Solve x² + 12x = 0
- x = 0, x = -12
- x = 0, x = -6
- x = √18 – 6
- x = √72 – 6
Correct

Incorrect
Question 15 of 50

15. Question
Solve x² + 28x = 0
- x = 0, x = -28
- x = 0, x = 28
- x = √196 + 14
- x = 0, x = -14
Correct

Incorrect
Question 16 of 50

16. Question
Solve x² – 32x = 0
- x = 0, x = 32
- x = 0, x = 16
- x = √256 + 16
- x = 0, x = -32
Correct

Incorrect
Question 17 of 50

17. Question
Solve x² + 16x = 0
- x = 0, x = -16
- x = √32 – 8
- x = 0, x = 16
- x = 0, x = -8
Correct

Incorrect
Question 18 of 50

18. Question
Solve x² + 4x = 0
- x = 0, x = -4
- x = √2 – 2
- x = 0, x = 4
- x = 0, x = -2
Correct

Incorrect
Question 19 of 50

19. Question
Solve x² – 40x = 0
- x = 0, x = 40
- x = √400 + 20
- x = 0, x = 20
- x = 0, x = -40
Correct

Incorrect
Question 20 of 50

20. Question
Solve x² + 8x = 0
- x = 0, x = -8
- x = √8 – 4
- x = 0, x = -4
- x = 0, x = 8
Correct

Incorrect
Question 21 of 50

21. Question
Solve x² – 12x = 0
- x = 0, x = 12
- x = 0, x = -12
- x = 0, x = 6
- x = √18 – 6
Correct

Incorrect
Question 22 of 50

22. Question
Solve x² – 48x = 0
- x = 0, x = 48
- x = √576 + 24
- x = √1152 – 24
- x = 0, x = 24
Correct

Incorrect
Question 23 of 50

23. Question
Solve x² + 48x = 0
- x = 0, x = -48
- x = √288 – 24
- x = √576 + 24
- x = 0, x = -24
Correct

Incorrect
Question 24 of 50

24. Question
Solve x² + 12x = 0
- x = 0, x = -12
- x = 0, x = -6
- x = √18 – 6
- x = √72 – 6
Correct

Incorrect
Question 25 of 50

25. Question
Solve x² + 56x = 0
- x = 0, x = -56
- x = √392 – 28
- x = 0, x = -28
- x = √1568 – 28
Correct

Incorrect
Question 26 of 50

26. Question
Solve x² + 24x = 0
- x = 0, x = -24
- x = 0, x = 24
- x = √288 – 12
- x = √72 – 12
Correct

Incorrect
Question 27 of 50

27. Question
Solve x² + 16x = 0
- x = 0, x = -16
- x = √32 – 8
- x = 0, x = 16
- x = 0, x = -8
Correct

Incorrect
Question 28 of 50

28. Question
Solve x² – 16x = 0
- x = 0, x = 16
- x = 0, x = -16
- x = 0, x = 8
- x = √128 – 8
Correct

Incorrect
Question 29 of 50

29. Question
Solve x² – 20x = 0
- x = 0, x = 20
- x = √50 – 10
- x = √100 + 10
- x = 0, x = 10
Correct

Incorrect
Question 30 of 50

30. Question
Solve x² + 8x = 0
- x = 0, x = -8
- x = √8 – 4
- x = 0, x = -4
- x = 0, x = 8
Correct

Incorrect
Question 31 of 50

31. Question
Solve x² + 60x = 0
- x = 0, x = -60
- x = √1800 – 30
- x = 0, x = -30
- x = 0, x = 60
Correct

Incorrect
Question 32 of 50

32. Question
Solve x² + 36x = 0
- x = 0, x = -36
- x = √648 – 18
- x = √324 + 18
- x = 0, x = -18
Correct

Incorrect
Question 33 of 50

33. Question
Solve x² + 52x = 0
- x = 0, x = -52
- x = 0, x = -26
- x = 0, x = 52
- x = √1352 – 26
Correct

Incorrect
Question 34 of 50

34. Question
Solve x² + 28x = 0
- x = 0, x = -28
- x = 0, x = 28
- x = √196 + 14
- x = 0, x = -14
Correct

Incorrect
Question 35 of 50

35. Question
Solve x² + 32x = 0
- x = 0, x = -32
- x = 0, x = -16
- x = √512 – 16
- x = 0, x = 32
Correct

Incorrect
Question 36 of 50

36. Question
Solve x² – 60x = 0
- x = 0, x = 60
- x = √900 + 30
- x = √450 – 30
- x = 0, x = -60
Correct

Incorrect
Question 37 of 50

37. Question
Solve x² + 52x = 0
- x = 0, x = -52
- x = 0, x = -26
- x = 0, x = 52
- x = √1352 – 26
Correct

Incorrect
Question 38 of 50

38. Question
Solve x² + 44x = 0
- x = 0, x = -44
- x = 0, x = 44
- x = √242 – 22
- x = √484 + 22
Correct

Incorrect
Question 39 of 50

39. Question
Solve x² – 36x = 0
- x = 0, x = 36
- x = 0, x = 18
- x = √162 – 18
- x = 0, x = -36
Correct

Incorrect
Question 40 of 50

40. Question
Solve x² + 48x = 0
- x = 0, x = -48
- x = √288 – 24
- x = √576 + 24
- x = 0, x = -24
Correct

Incorrect
Question 41 of 50

41. Question
Solve x² – 32x = 0
- x = 0, x = 32
- x = 0, x = 16
- x = √256 + 16
- x = 0, x = -32
Correct

Incorrect
Question 42 of 50

42. Question
Solve x² – 28x = 0
- x = 0, x = 28
- x = 0, x = 14
- x = √392 – 14
- x = √196 + 14
Correct

Incorrect
Question 43 of 50

43. Question
Solve x² + 40x = 0
- x = 0, x = -40
- x = √400 + 20
- x = 0, x = -20
- x = √800 – 20
Correct

Incorrect
Question 44 of 50

44. Question
Solve x² + 24x = 0
- x = 0, x = -24
- x = 0, x = 24
- x = √288 – 12
- x = √72 – 12
Correct

Incorrect
Question 45 of 50

45. Question
Solve x² – 60x = 0
- x = 0, x = 60
- x = √900 + 30
- x = √450 – 30
- x = 0, x = -60
Correct

Incorrect
Question 46 of 50

46. Question
Solve x² – 44x = 0
- x = 0, x = 44
- x = 0, x = -44
- x = 0, x = 22
- x = √242 – 22
Correct

Incorrect
Question 47 of 50

47. Question
Solve x² + 20x = 0
- x = 0, x = -20
- x = √200 – 10
- x = 0, x = -10
- x = 0, x = 20
Correct

Incorrect
Question 48 of 50

48. Question
Solve x² – 20x = 0
- x = 0, x = 20
- x = √50 – 10
- x = √100 + 10
- x = 0, x = 10
Correct

Incorrect
Question 49 of 50

49. Question
Solve x² – 36x = 0
- x = 0, x = 36
- x = 0, x = 18
- x = √162 – 18
- x = 0, x = -36
Correct

Incorrect
Question 50 of 50

50. Question
Solve x² – 40x = 0
- x = 0, x = 40
- x = √400 + 20
- x = 0, x = 20
- x = 0, x = -40
Correct

Incorrect

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