Question

(2x² + 4x - 7) = (x + 5).

Answer 1

`2 {x}^(2) +4 x - 7 = x + 5 \\ 2 {x}^(2) + 4x - x - 7 - 5 = 0 \\ 2 {x}^(2) + 3x - 12 =0 \\ \\`

USING THE QUADRATIC FORMULA

`x = \frac{ - 3 + - \sqrt{ {3}^(2) - 4(2)( - 12)} }{2(2)} \\ \\ x = ( - 3 + √(105) )/(4) or \\ \\ x = - (3 + √(105) )/(4)`

HOPE THIS HELPS