Answer: -y^4 - 5xy^2 + 6x^2
Explanation:
(6x + y^2) (x - y^2)
Rearrange terms:
(y^2 + 6x) (-y^2 + x)
Distrubute:
(-y^2 + x) y^2 + 6x (-y^2 + x)
-y^4 + xy^2 -6xy^2 + 6x^2
Combine like terms:
-y^4 - 5xy^2 + 6x^2
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