September 2018 1 47 Report

Zapisz w jak najprostszej postaci: (wzory skróconego mnożenia).

a)-4(2x+0,5)

b)3(x^2-2)-(15-6x^2)

c) -3(1-2y)+½(6-12y)

d)-(x+2)-2x(x-½)

e)-(x+7)(x-3)

f)1-(z+5)(z-1)

Jeśli ktoś nie umie wszystkich to prosze chociaż o kilka. Dziękuje z góry za pomoc.

^2 - do kwadratu lub do potęgi 2. :)

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