Question

2x2_7x=39 solve this equation​

Answer 1

2×2+7×5=39

this is your answer

Answer 2

$2 {x}^{2} - 7x = 39 \\ \\ 2 {x}^{2} - 7x - 39 = 0 \\ \\ 2 {x}^{2} + 6x - 13x - 39 = 0 \\ \\ 2x(x + 3) - 13( x + 3) = 0 \\ \\ (x + 3) (2x - 13) = 0 \\ \\ when \: (x + 3) = 0 \\ \\ x = - 3 \\ \\ when \: \: 2x - 13 = 0 \\ \\ 2x = 13 \\ \\ x = \frac{13}{2}$

Hope it helps you :)