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kseniakl1
@kseniakl1
August 2021
2
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помогите, пожалуйста, упростить выражение 3/x+y + 5/x-y
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Answers & Comments
KatyaTrokhan1
3/(x+y)+5/(x-y)=(3(x-y)+5(x+y))/(x²-y²)=(3x-3y+5x+5y)/(x²-y²)=
=(8x+2y)/(x²-y²)=2(4x+y)/(x²-y²)..
0 votes
Thanks 0
sangers1959
Verified answer
3/х+5/х=8/х
у-у=0
т.е =8/х
2 votes
Thanks 5
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Answers & Comments
=(8x+2y)/(x²-y²)=2(4x+y)/(x²-y²)..
Verified answer
3/х+5/х=8/ху-у=0
т.е =8/х