36(x-2)(x-2)-49(x+1)(x+1) - 知识问答

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.

3个回答

[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

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