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Simplify (x2 + 3x) (x2 - x + 4)

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  1. 19 May, 01:04
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    x⁴ + 2x³ + x² + 12x

    Step-by-step explanation:

    (x² + 3x) (x² - x + 4)

    = x² (x²) - x (x²) + 4 (x²) + x² (3x) - x (3x) + 4 (3x)

    = x^4 - x³ + 4x² + 3x³-3x²+12x

    = x⁴ + 2x³ + x² + 12x
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