Question

Factirise tge following 3x^2-4x-7

Answer 1

Answer:

$> 3x {}^{2} - 4x - 7 = 0 \\ = > 3x {}^{2} + 7x - 3x - 7 = 0 \\ = > 3x {}^{2} - 3x + 7x - 7 = 0 \\ = > 3x(x - 1) + 7(x - 1) = 0 \\ = > (3x + 7)(x - 1) = 0 \\ = > x - 1 = 0 \\ = > x = 1 \\ = > or \\ = > 3x + 7 = 0 \\ = > 3x = - 7 \\ = > x = - \frac{7}{3}$