Упростите выражение: 1) (a-b)(a+b)(a⁴+b²+b⁴) 2) (y-3)(y²+3y+9)-y(y-3)(y+3)-(y+3)². Created by TRESAD12. algebra-ru

Упростите выражение: 1) (a-b)(a+b)(a⁴+b²+b⁴) 2) (y-3)(y²+3y+9)-y(y-3)(y+3)-(y+3)...

August 2022 1 16 Report

Упростите выражение:
1) (a-b)(a+b)(a⁴+b²+b⁴)
2) (y-3)(y²+3y+9)-y(y-3)(y+3)-(y+3)²

Answers & Comments

MizoriesKun (a-b)(a+b)(a⁴+b²+b⁴)=(a²-b²)(a⁴+b²+b⁴)=a⁶-b⁶

(y-3)(y²+3y+9)-y(y-3)(y+3)-(y+3)²=y³-3³-y(y²-3²)-(y²+6y+3²)=

= y³-27- y³+9y - y²- 6y- 9 = 3y-36=3(y-12)

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