Question

Determine a equação :
(x+1)²=3+x

Answer 1

x²+x+x+1=3+x
x²+2x+1=3+x
x²+2x+1-3-x=0
x²+x-2=0  onde   a=1, b=1 c=-2

x'=(-b+√¯b²-4ac)/2a
x'=(-1+√¯1²+8)/2*1
x'=(-1+√¯9)/2
x'=(-1+3)/2
x'=2/2    onde X'=1

x"=(-b-√¯b²-4ac)/2a
x''=(-1-√¯1²+8)/2*1
x''=(-1-√¯9)/2
x''=(-1-3)/2
x''=-4/2    onde X''=-2

pronto melhor resposta ok