(9x square-x+15)(x square+2)
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Step-by-step explanation:
(9x^2 - x +15)(x^2 + 2)
= 9x^4 + 18x^2 - x^3 - 2x + 15x^2 + 30
= 9x^4 - x^3 + 33x^2 - 2x + 30
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