分解因式:121(x-y)²-169(x+y)²

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分解因式:121(x-y)²-169(x+y)²分解因式:121(x-y)²-169(x+y)²分解因式:121(x-y)²-169(x+y)&sup

分解因式:121(x-y)²-169(x+y)²
分解因式:121(x-y)²-169(x+y)²

分解因式:121(x-y)²-169(x+y)²
121(x-y)²-169(x+y)²
=[11(x-y)]^2-[13(x+y)]^2
=[11(x-y)+13(x+y)][(11x-y)-13(x+y)]
=-(24x+2y)(2x+14y)
=-4*(12x+y)(x+7y)