Question

x²+2x+1=0 mim ajuda nessa prfv​

Answer 1

Explicação passo-a-passo:

x²+2x+1=0

a=1

b=2

c=1

∆=b²-4ac

∆=2²-4×1×1

∆=4-4

∆=0

-b±√∆/2a

-2±√0/2×1

-2±0/2

x¹=-2+0/2=-2/2=-1

x²=-2-0/2=-2/2=-1

Answer 2

Resposta:

x²+2x+1=0

x²+2*x*1 +1²=0

(x+1)²=0

x+1=0

x= -1                ==> x'=-1 e x''=-1