101²202+1用因式分解(a+b)²-6(a+b)+9 (a+b)(a+b-14)+49
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![101²202+1用因式分解(a+b)²-6(a+b)+9 (a+b)(a+b-14)+49](/uploads/image/z/12674634-42-4.jpg?t=101%26%23178%3B202%2B1%E7%94%A8%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%EF%BC%88a%2Bb%EF%BC%89%26%23178%3B-6%EF%BC%88a%2Bb%EF%BC%89%2B9+%EF%BC%88a%2Bb%EF%BC%89%EF%BC%88a%2Bb-14%EF%BC%89%2B49)
101²202+1用因式分解(a+b)²-6(a+b)+9 (a+b)(a+b-14)+49
101²202+1用因式分解
(a+b)²-6(a+b)+9 (a+b)(a+b-14)+49
101²202+1用因式分解(a+b)²-6(a+b)+9 (a+b)(a+b-14)+49
①原式=101^2+2*101+1=(101+1)^2=102^2=10404
②原式=[(a+b)-3]^2=(a+b-3)^2
③原式=(a+b)^2-14(a+b)+49=[(a+b)-7]^2=(a+b-7)^2