September 2018 1 20 Report

Uprośc wyrażenie.

a) (x-3) (x+3) + (2+x) (2-x)

b) (x+ 3/2) (x- 3/2) - (x-1/2) (x+1/2)

c) (2y -3)do potęgi 2 - (3y-2) (3y+2)

Potrzebne na zaraz, dam naj;)


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