September 2018 1 7 Report

uprość wyrażenia ;

2(1,5+4x)=

-3(2-12x)=

½(6x-4)+8-2x=

opuść nawiasy zgodnie z prawami działań i zredukuj wyrazy podobne;

(2x-3)+(3x-4)-(6x-1)=

(x²-3x-5)+(2x²+4x+6)+(-x²-x+2)=

(-y²-5y)+(3y²+2y-4)-(7y²+4)=

(2,7x-3,2y+12,5)-(3.8x-2,2y+3,6)+(4,5+3)=

(½x+3y-5,5)-(¾x-6,5y+7.6)+(2¼x+⅖y-8,8)=

(x³+2y²-1,5)-(3x³-4y²-5)+(2x³-5y²-6,5)=]

pilne na jutro potrzebuje!!!!!!


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