Question

find the following equation by completing square 5 x square - 7 x minus 6 is equal to zero

Answer 1

$5 {x}^{2} - 7x - 6 = 0$
$5x(x - 2) + 3(x - 2) = 0$
$(5x + 3)(x - 2) = 0$
$5x + 3 = 0 \: or \: x - 2 = 0$
$x = \frac{ - 3}{5} \: or \: x = 2$