Question

calcule as raizes X²+7x=0

Answer 1

x²+7x= 0
a= 1, b= 7, c= 0

Δ= b²-4.a.c
Δ= 49

x= (-b±√Δ)/2.a

x= (-7±7)/2

x'= 0
x''= -7

Solução {0 e -7}

Forte abraço!

Answer 2

x² + 7x = 0
x(x+7)= 0

x = 0

x + 7 = 0
x = -7

x' = 0
x" = -7