Question 13 • OK-Algebra II A
Distribute each term: the product is 2x⁴ − 4x³ + 10x² + 4x³ − 8x² + 20x − 3x² + 6x − 15. Combine like terms: the x³ terms cancel, and the x² terms total −x², giving 2x⁴ − x² + 26x − 15, which is choice C.
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