8. The sum of x^4 – xy + 2y^2 and -X^4 + xy + 2y^2 is
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Answered by
1
Answer:
4y^2
Step-by-step explanation:
Answered by
1
Answer:
x^4 – xy + 2y^2 - X^4 + xy + 2y^2
4y^2
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