Question

qual o resultado de 2x^2-12x+18=2

Answer 1

2x² - 12x + 18 = 2
2x² - 12x + 18-2 = 0
2x² - 12x + 16 = 0
∆= b²-4.a.c
∆= (-12)² -4.2.16
∆=144 - 128
∆= 16
x' e x" = -b±√∆÷2a
x' = 12+4=16÷4=4
x" = 12-4=8÷4=2