September 2018 1 11 Report

1. Oblicz używając wzorów skróconego mnożenia.

a)(b+3)²+(b-3)²

b)2(3+b)²

c)(3x+2)²-3(x-3)²

d)2(x-1)²

e)2x-x²+1-(x+3)²

f)4(3-x²)+4(x-1)²+3x(2-x)-(3-x)(3+x)

g)(x-5)²+3(x-1)(x+1)+(2x²-1)+x(2x-3)

h)(4+x)(4-x)+2x(1-3x)-2(x+2)²-4(x²-1)

Daje naj.


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