(x+5)(x方+25)(x-5) 等于多少

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(x+5)(x方+25)(x-5)等于多少(x+5)(x方+25)(x-5)等于多少(x+5)(x方+25)(x-5)等于多少=x^4-625Xx的4次方减625(x+5)(x^2+25)(x-5)(

(x+5)(x方+25)(x-5) 等于多少
(x+5)(x方+25)(x-5) 等于多少

(x+5)(x方+25)(x-5) 等于多少
=x^4-625

X

x的4次方减625

(x+5)(x^2+25)(x-5)
(x^2-25)(x^2+25)=0
x^2-5^2=0
x1=5;x2=-5

x^4-5^4