Question

find the excess of 3y2-5y+7 over 5y2-3y3+9

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

3y3-2y2-5y-2

Step-by-step explanation:

3y2-5y+7 - (5y2-3y3+9)

=3y2-5y+7 -5y2+3y3-9

(Now you have to arrange the expression by order)

=3y3+3y2-5y2-5y+7-9

=3y3-2y2-5y-2 (Ans.)