November 2018 1 30 Report

Wyznacz iloczyn korzystając ze wzorów skróconego mnożenia.

a) (x²+1)(x+1)(x-1)

b) (√2-x)(√2+x)(x²+2)

c) (2x+1)(4x²+1)(1-2x)

d) (x²-2x+1)(x+1)²

Kwadrat sumy: (a+b)²=a²+2ab+b²

Kwadrat różnicy: (a-b)²=a²-2ab+b²

Różnica kwadratów: a²-b²=(a-b)(a+b)


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