Question

Equação de 2 grau A:)3x²-5x=x (x+1)-2

Answer 1

3x²-5x=x(x+1)-2
3x²-5x=x²+x-2
3x²-x²-5x-x+2=0
2x²-6x+2=0

-b±√b²-4.a.c/2a
-(-6)±√(-6)²-4.2.2/2.2
6±√36-16/4
6±√20/4
6±√5.2²/4
6±2√5/4

x1: 6+2√5/4
x2:6-2√5/4