August 2018 2 152 Report
Oblicz wartość liczbową wyrażenia

a) 2(x-3y)^2-3(x-2y)(x+2y)+12xy dla x=3 i y+-1


b) (x+3y)(x-3y) + (x+2y)^2 - (2x^2-5y^2) dla x= pierwiastek z 8 i y= pierwiastek z 2 ;)

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