Question

★ 5x(x-1) -2(2x²-7x)=-8 ecuaciones

Answer 1

Explicación paso a paso:

$5 {x}^{2} - 5x - 4 {x}^{2} + 14x = - 8$

${x}^{2} + 9x + 8 = 0$

$x = \frac{ - 9 + - \sqrt{ {9}^{2} - 4(1)(8)} }{2 \times 1}$

$\times = \frac{ - 9 + - 7 }{2}$

$x1 = - 1$

$x2 = - 8$