Question

RESOLVA A EQUAÇAO DO 2 GRAU x2-9X-22=0

Answer 1

x² - 9x - 22 = 0
Δ = (-9)² - 4(1)(-22)
Δ = 81 + 88
Δ = 169
$x= \frac{-(-9)\pm13}{2} \\ x = \frac{9\pm13}{2}$
x' = 11
x'' = -2