September 2018 2 34 Report

1. Przekształć na sumę:

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

b)(a-2b)(a+2b)

c)(3x+2y)(3x-2y)

d)(\frac{1}{2}x-\frac{1}{3})(\frac{1}{2}x+\frac{1}{3})


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