X^4y^2+7x^3y^3-3xy^5+2x^2y^4 in descending powers of x

  -x^4y^2 +7x^3y^3 +2x^2y^4 -3xy^5

Step-by-step explanation:

The powers of x in the terms of the given expression are ...

  4, 3, 1, 2

so, we want to swap the last two terms to put them in the desired order:

  -x^4y^2 +7x^3y^3 +2x^2y^4 -3xy^5

1; 35 is the ratio

step-by-step explanation:

step-by-step explanation:

the answer is 89 d

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