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Question
Subtract the following expressions:
–4x2y – y3 from x3 + 3xy2 – x2y
Sum
Solution
We have, x3 + 3xy2 – x2y – (–4x2y – y3)
= x3 + 3xy2 – x2y + 4x2y + y3
= x3 + y3 + 3x2y + 3xy2
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