1)2a^3+9(a+1)(a^2-a+1) 2)x(x+2)(x-2)-(x-3)(x^2+3x+9) 3)3(b-1)^2+(b+2)(b^2-2b+4)-(b+1)^3...

Question

1)2a^3+9(a+1)(a^2-a+1)
2)x(x+2)(x-2)-(x-3)(x^2+3x+9)
3)3(b-1)^2+(b+2)(b^2-2b+4)-(b+1)^3
4)(a-1)^3-4a(a+1)(a-1)+3(a-1)(a^2+a+1)

Comments

плиз пож

Answer 1

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Comments

спасибо бооьшое