Resposta :
Resposta:
a) x²+5x=0 , x*(x + 5) = 0, x1 = 0, x2 = -5
b) x²+10x=0, x*(x + 10), x1 = 0, x2 = -10
c) x²-7x= x*(x - 7), x1 = 0, x2 = 7
Resposta:
a) x²+5x=0 , x*(x + 5) = 0, x1 = 0, x2 = -5
b) x²+10x=0, x*(x + 10), x1 = 0, x2 = -10
c) x²-7x= x*(x - 7), x1 = 0, x2 = 7