Multiply.(2x2 + 4x - 3)(x2 - 2x + 5)

Distribute each term: 2x²(x² − 2x + 5) + 4x(x² − 2x + 5) − 3(x² − 2x + 5). Combining like terms gives 2x⁴ + (−4x³ + 4x³) + (10x² − 8x² − 3x²) + (20x + 6x) − 15 = 2x⁴ − x² + 26x − 15, which is choice C.

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