Question

gostaria de saber a conta armada de ×2+×=0 ?

Answer 1

x²+x=0
x²-x-0=0

A=1
B= -1
C= 0

Δ=b²-4ac
Δ=(-1)²-4.1.0
Δ= 1-0
Δ=1

x=-b ⁺₋√Δ / 2a
x= -(-1) ⁺₋ √1 / 2.1
x= 1 ⁺₋ 1 / 2


x'= 1+1 / 2
x'= 2 / 2 
x'= 1

x''= 1-1 / 2
x''= 0 / 2
x''= 0