Find the equation whose roots are \(\frac{3}{4}\) and -4

A.

4x2 - 13x + 12 = 0

B.

4x2 - 13x - 12 = 0

C.

4x2 + 13x - 12 = 0

D.

4x2 + 13x + 12 = 0

View answer & explanation

Correct answer is C

Let x = \(\frac{3}{4}\) or x = -4

i.e. 4x = 3 or x = -4

(4x - 3)(x + 4) = 0

therefore, 4x2 + 13x - 12 = 0

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