January 2019 1 33 Report
Uprość wyrażenie;
b)(2y-3)^2+(y+6)^2
c)(x-3y)(x+3y)-(x+2y)^2
d)(5x-y)(5x+y)-(5-2y)^2
e)(2+a)(a-2)+(-3+2a)^2
f)(1-2x)(1+2x)- (2yx√2)^2 / 2
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