Math, asked by yaman415700, 5 months ago

30–17(x-y)-21(x-y)²
do fast

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Answered by arohi015

I THINK THIS IS THE ANSWER....

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Answered by vanshgenius2004

Answer:

$30 - 17(x - y) - 21 {(x - y)}^{2} \\ 30 - 17x + 17y - 21( {x}^{2} + {y}^{2} - 2xy) \\ 30 - 17x + 17y - 21 {x}^{2} - 21 {y}^{2} + 42xy \\ 30 - 17x - 21 {x}^{2} + 17y - 21 {y}^{2} + 42xy \\ 30 - x(17 + 21x) + y(17 - 21y) + 42xy$

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30–17(x-y)-21(x-y)²do fast​

Answers

30–17(x-y)-21(x-y)²
do fast