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21 September, 09:45

What is 3x^2 - 2x - 4 multiplied by 2x^2 + x - 3

Explain the steps.

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Answers (2)
  1. 21 September, 09:53
    0
    (3x²-2x-4) (2x²+x-3) = 3x² (2x²+x-3) - 2x (2x²+x-3) - 4 (2x²+x-3) =

    =6x⁴+3x³-9x² - (4x³+2x²-6x) - (8x²+4x-12) =

    =6x⁴+3x³-9x²-4x³-2x²+6x-8x²-4x+12=

    =6x⁴-x³-x²+2x+12
  2. 21 September, 10:03
    0
    (3x² - 2x - 4) (2x² + x - 3)

    6x⁴ + 3x³ - 9x² - 4x³ - 2x² + 6x - 8x² - 4x + 12

    6x⁴ + 3x³ - 4x³ - 9x² - 2x² - 8x² + 6x - 4x + 12

    6x⁴ - x³ - 19x² + 2x + 12
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