Question

3x平方-7x+1=0 2(x+1)平方-4(x+1)+2=0

Answer 1

x^2=x平方

3x^2-7x+1=0

x1=（7-根号37）/6

x2=（7-根号37）/6

2(x+1)^2-4(x+1)+2=0

(x+1)^2-2(x+1)+1=0

[(x+1)-1]^2=0

x=0