1.) (2+a)(4-2a+a^2) 2.) (a+3)^3 3.) (x-1)(x^325+1)-x^26 (при x=0,93). Created by ZRKa777. algebra-ru

1.) (2+a)(4-2a+a^2) 2.) (a+3)^3 3.) (x-1)(x^325+1)-x^26 (при x=0,93)...

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1.) (2+a)(4-2a+a^2) 2.) (a+3)^3 3.) (x-1)(x^325+1)-x^26 (при x=0,93)

Answers & Comments

АннаАрт 1.) (2+a)(4-2a+a^2)=8-4a+2a^2+4a-2a^2+a^3=a^3+8
2.) (a+3)^3=(a+3)(a+3)(a+3)= (a+3)(a^2+6a+9)=
=a^3+6a^2+9a+3a^2+18a+27=a^3+9a^2+27a+27
3.) (x-1)(x^325+1)-x^26
(при x=0,93)
(0,93-1)((0,93)^325+1)-(0,93)^26 ≈ -0,22155

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