Question

-2x²-2x+12=0? quanto que e?

Answer 1

$- 2 {x}^{2} - 2x + 12 = 0$

${x}^{2} + x - 6 = 0$

$x \times (x + 3) - 2(x + 3) = 0$

$(x + 3) \times (x - 2) = 0$

x+3=0

x-2=0

x= -3

x= 2