Question

the roots of 3x^2 + 4x -7 = 0 are

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Answer 1

Step-by-step explanation:

If quadratic equation 3x2 – 4x + k = 0 has equal roots, then the value of k is 4 / 3.

Quadratic equation 3x2 – 4x + k = 0 has equal roots D = b2 – 4ac = 0, where a = 3, b = –4 and c = k (–4)2 – 4 × 3 × k = 0 16 – 12k = 0 k = 16 12 1612 = 4

Answer 2

Step-by-step explanation:

3x^2+4x-7 = 0

3x^2+7x-3x-7=0

x(3x+7) -1(3x+7)=0

(x-1) (3x+7)=0

hence roots are (x-1) (3x+7)