Question

Resolva esta equações: a) x (x+1)=0 b) 2x (x-5)=0 c) (x+3)(x-1)=0 d) (x-6)(4x-8)=0

Answer 1

a)x(x+1)=0
   x²+1x=0
b)2x(x-5)=0
   2x²-10x=0
c)(x+3)(x-1)=0
   x²-1x+3x-3=0
   x²+2x-3=0
d)(x-6)(4x-8)=0
    4x²-8x-24x+48=0
    4x²-32x+48=0