2) 7x\3x+3y-2x\3x-3y; 4) 3x\4x+4y-6x\8x+8y;...

махито3 @махито3

July 2022 1 3 Report

2) 7x\3x+3y-2x\3x-3y;
4) 3x\4x+4y-6x\8x+8y;

Answers & Comments

litanalove 2) (7x/3(x+y))-2x/(3(x-y)=
(7x(x-y)-2x(x+y))/3(x-y)(x+y)
=(7x^2-7xy-2x^2-2xy)/
3(x-y)(x+y)=(5x^2-9xy)/
3(x^2-y^2)=(x(5x-9y)/3(x^2-y^2)

4) (6x-6x)/(8(x+y)=0

10 votes Thanks 10

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