State whether these equations have two distinct roots, two equal roots or no roots a x 2 4x 4 b x 2 4x 21 c x 2 9x 1 d x 2 3x 15 e x 2 6x 2 f 4x 2 20x 25 g 3x 2 2x 7 h 5x 2 2x 9 ...

For equation ax bxc If b4ac 0 two distinct root b4ac0 two equal root b4ac0 no roots a ...

State whether these equations have two distinct roots, two equal roots or no roots. a. x 2

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State whether these equations have two distinct roots, two equal roots or no roots.

a. x² + 4x + 4

b. x² + 4x - 21

c. x² + 9x = 1

d. x² - 3x + 15

e. x² - 6x + 2

f. 4x² + 20x = 25

g. 3x² + 2x + 7

h. 5x² - 2x - 9

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Cambridge IGCSE And O Level Additional Mathematics Coursebook

ISBN: 9781108411660

2nd Edition

Authors: Sue Pemberton

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State whether these equations have two distinct roots, two equal roots or no roots. a. x 2

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Cambridge IGCSE And O Level Additional Mathematics Coursebook

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