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31-12-2020
Mathematics

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subtract (3x2-2x+5xy-7)from(8-9xy+3x2-5x)

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CSMedrano CSMedrano

31-12-2020

Answer:

-3x-14xy+15

Step-by-step explanation:

[tex](8-9xy+3x^2-5x)-(3x^2-2x+5xy-7)\\\\=8-9xy+3x^2-5x-(3x^2)-(-2x)-(5xy)-(-7)\\\\=8-9xy+3x^2-5x-3x^2+2x-5xy+7\\\\=(8+7)+(-9xy-5xy)+(3x^2-3x^2)+(-5x+2x)\\\\=15-14xy+0-3x\\\\=-3x-14xy+15[/tex]

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