Question 15 • OK-Algebra II A
Distribute each term in the first polynomial across the second: the products are 2x⁴ − 4x³ + 10x², 4x³ − 8x² + 20x, and −3x² + 6x − 15. Combine like terms: the x³ terms cancel, and the x² terms give 10x² − 8x² − 3x² = −x²; the x terms give 20x + 6x = 26x. The result is 2x⁴ − x² + 26x − 15, choice C.
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