10) multiply in ( 3xpower2+3y²) and (2x²-3y²)
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Answer:
(3x²+3y²) (2x²-3y²)
2x²(3x²+3y²) -3y² ( 3x²+3y²)
=6x⁴ + 6x²y² - 9y²x² - 9y⁴
= 6x⁴- 3x²y²-9y⁴
hope it helps!
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