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24 September, 20:10

Which is true about the degree of the sum and difference of the polynomials

3x5y - 2x3y4 - 7xy3 and - 8x5y + 2x3y4 + xy3?

a) Both the sum and difference have a degree of 6.

b) Both the sum and difference have a degree of 7.

c) The sum has a degree of 6, but the difference has a

degree of 7.

d) The sum has a degree of 7, but the difference has a degree of 6.

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Answers (1)
  1. 24 September, 21:52
    0
    3x^5y - 2x^3y^4 - 7xy^3 - 8x^5y + 2x^3y^4 + xy^3 =

    -5x^5y - 6xy^3

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

    -4x^3y^4 + 11x^5y - 8xy^3

    C) The sum has a degree of 6, but the difference has a degree of 7.
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