упростите 1) b^3+(a^2+5b)*(ab-b^2) 2) (a-b)*(a+2)-(a+b)*(a-2) 3) (х+y)*(x-y)-(x-1)*(x-2)

Question

упростите
1) b^3+(a^2+5b)*(ab-b^2)
2) (a-b)*(a+2)-(a+b)*(a-2)
3) (х+y)*(x-y)-(x-1)*(x-2)

Answer 1

Принимайте решение)))). ))

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