Question

PRA HOJEEEEEE

EQUAÇÃO DO 2 GRAU 2x2-1x-1=0​

Answer 1

2x² - x - 1 = 0

x = - b ±√b²-4ac/2.a

x = -(-1) ± √(-1)² - 4.2(-1)/2.2

x = 1 ±√9/4

x1 = 1 + 3/4

x1 = 4/4 = 1

x2 = 1 - 3 /4 = -2/4  = -1/2