November 2018 1 21 Report

Sprowadź do najprostszej postaci :

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

b) (x+2y)[5(x+2y)^2-3(2x-y)^2-5(x^2-y^2-x+3y)]-1

c) -2x-y^2)-(x+pierwiastek2y)(x-pierwiastek2y)+(2x+y)^2


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