Ответ:
Объяснение:
(1+abc)^2= 1+2abc+a^2b^2c^2
(b^2+2)(b^2-2)=b^4-4
-(2a-1,5b)^2= -4a^2+6ab-2,25b^2
20xy(1/2x^2-y)(1/2x^2+y)=5x^5y-20xy^3
a^2+2ab+b^2-4=(a+b-2)(a+b+2)
27p^3-0,125q^3=(3p-0,5q)(9p^2+1,5pq+0,25q^2)
-18x^2y-12xy-2y=-2y(3x+1)^2
(x+1)^3-x2(x+3)=-5
x^3+3x^2+3x+1-x^3-3x^2=-5
3x+1=-5
3x=-5-1
3x=-6
x=-2
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Answers & Comments
Ответ:
Объяснение:
(1+abc)^2= 1+2abc+a^2b^2c^2
(b^2+2)(b^2-2)=b^4-4
-(2a-1,5b)^2= -4a^2+6ab-2,25b^2
20xy(1/2x^2-y)(1/2x^2+y)=5x^5y-20xy^3
a^2+2ab+b^2-4=(a+b-2)(a+b+2)
27p^3-0,125q^3=(3p-0,5q)(9p^2+1,5pq+0,25q^2)
-18x^2y-12xy-2y=-2y(3x+1)^2
(x+1)^3-x2(x+3)=-5
x^3+3x^2+3x+1-x^3-3x^2=-5
3x+1=-5
3x=-5-1
3x=-6
x=-2