What is the difference of the two polynomials?(9x2 + 8x) – (2x2 + 3x)

Subtract the second polynomial by changing the signs of both of its terms: (9x² + 8x) − (2x² + 3x) = 9x² + 8x − 2x² − 3x. Combine like terms: (9 − 2)x² + (8 − 3)x = 7x² + 5x, which is choice A.

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