Question

Resolva as equações abaixo:
a) (x+3) · (x+3) = (x – 1) · (3x +1)
b) (x - 2) . (x - 1) = 2
c) (2x−1). (4x−3)= 0
d) 3x²−9x−20 = x²+5x+16​

Answer 1

Resposta:

a) $x_{1} =-1$ , $x_{2} =5$

b) $x_{1} =0$ , $x_{2} =3$

c) $x_{1} =\frac{1}{2}$ , $x_{2} =\frac{3}{4}$

d) $x_{1} =-2$ , $x_{2} =9$