Question

(1) 2(x+3)² = x(x+3) (2) x²-2(根号5)+2=0

Answer 1

2(x+3)² = x(x+3) x²-2(根号5)+2=0

(x-(根号5））²=3

2（X+3）=x X-(根号5)=根号3

x=-3 X=根号5+根号3

(x+1)²-3(x+1)+2=0

（(x+1)-3/2）²=1/4

x+1-3/2=1/2

x=1