(x-2)(x-5)(x-6)(x-15)+8x^2 ^2是平方

来源：学生作业帮助网编辑：作业帮时间：2024/11/07 19:24:45

(x-2)(x-5)(x-6)(x-15)+8x^2 ^2是平方
(x-2)(x-5)(x-6)(x-15)+8x^2
^2是平方

(x-2)(x-5)(x-6)(x-15)+8x^2 ^2是平方
(x-2)(x-5)(x-6)(x-15)+8x^2
=（x^2+30-17x)(x^2+30-11x)+8x^2
=(x^2+30-14x-3x)(x^2+30-14x+3x)+8x^2
=(x^2+30-14x)^2-9x^2+8x^2
=(x^2+30+x-14x)(x^2+30-x-14x)
=(x-10)(x-3)(x^2+30-15x)

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