October 2018 1 23 Report

Przedstaw w postaci sumy algebraicznej.

a) -(x+1)^2-x(x+2)=

b)(4-a)(5+a)+(6-a)(7+a)=

c)-(x+2y)+(-6x-9y)+(x+1)(X-1)=

d)5-(x+1)* 2+(2x-3)(x+4)=

Pilne!!!- proszę o pomoc ;)
Ps. ^2, czyli do kwadratu :)


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