2 years ago

what is the simplified expression of the following polynomial: xy4 + 5y7 - (6xy + 7y7) - x8y2 + (-3xy4) Step by Step

Mathematics

1 answer:

Gnoma [55]2 years ago

5 0

Answer:

-x^8y^2 -2y^7 -2xy^4 -6xy

Step-by-step explanation:

Eliminate parentheses.

xy^4 + 5y^7 - 6xy - 7y^7 - x^8y^2 -3xy^4

Arrange in descending degree order, group like terms.

-x^8y^2 +(5y^7 -7y^7) +(xy^4 -3xy^4) -6xy

Combine like terms.

-x^8y^2 -2y^7 -2xy^4 -6xy

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Evaluate 7 r − 15 s 7r− s 15 7, r, minus, start fraction, 15, divided by, s, end fraction when r = 3 r=3r, equals, 3 and s = 5

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Step-by-step explanation:

Evaluate 7 r − 15 /s

Given that r = 3 and s = 5

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Substitute 3 for r and 5 for s in the above expression

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klasskru [66]

Answer:

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Step-by-step explanation:

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By Solving the above equation we get;

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Ivenika [448]

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1 year ago