Use the discriminant to decide whether each of the following equations has two equal roots, two distinct

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Use the discriminant to decide whether each of the following equations has two equal roots, two distinct roots or no real roots:

a. 9x² − 12x + 4 = 0

b. 6x² − 13x + 6 = 0

c. 2x² + 7x + 9 = 0

d. 2x² + 9x + 10 = 0

e. 3x² − 4x + 5 = 0

f. 4x² + 28x + 49 = 0

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Cambridge IGCSE And O Level Additional Mathematics

ISBN: 9781510421646

1st Edition

Authors: Val Hanrahan, Jeanette Powell

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Question Posted: Sep 02, 2021 01:27 AM

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Use the discriminant to decide whether each of the following equations has two equal roots, two distinct

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The standard form of a quadratic equation is ax 2 bx c 0 where a is not equal to zero Discriminant D ...View the full answer

Cambridge IGCSE And O Level Additional Mathematics

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