Question

36(x-2)(x-2)-49(x+1)(x+1)=0 (2x-3)(2x-3)=3-2x 要这两道题的具体步骤.

Answer 1

[6(x-2)]^2-[7(x+1)]^2=0

6(x-2)=7(x+1)

x=-19

4x^2-12x+9=3-2x

4x^2-10x-6=0

2x^2-5x-3=0

x=3 or x=-1/2