Respuesta :

To simplify, we can combine like terms and add the exponents if the operation involved is multiplication. The given expression is:

(9x² + 6x + 4) - (5x² + 5x-3)

Simplifying,

9x²-5x²+6x-5x+7

4x²+6x-5x+7

4x²+x+7

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