September 2018 1 15 Report

a) x^2-3y+2x^2+5y+x^2-y = x= -1/2 y= 3/5

b) -2xy+2x-3y+6xy+x-2y= x= -3 y= -1/2


c) 2x^2y^2-5xy+x^2y^2+2xy-4xy= x= 1/3 y= -2

^2 oznacza do potęgi liczby 2. no że np:
3^2 czyli 3 do potegi drugiej.


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