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10 September, 21:41

Multiply the polynomials.

(x + 2) (2x2 + 9x+8)

+3
Answers (2)
  1. 10 September, 21:50
    0
    2x³ + 13x² + 26x + 16

    Step-by-step explanation:

    (x + 2) (2x² + 9x+8)

    = 2x² (x) + 9x (x) + 8 (x) + 2x² (2) + 9x (2) + 8 (2)

    = 2x³ + 9x² + 8x + 4x² + 18x + 16

    = 2x³ + 13x² + 26x + 16
  2. 10 September, 22:01
    0
    2x³ + 13x² + 26x + 16

    Step-by-step explanation:

    (x + 2) (2x² + 9x+8)

    = 2x² (x) + 9x (x) + 8 (x) + 2x² (2) + 9x (2) + 8 (2)

    = 2x³ + 9x² + 8x + 4x² + 18x + 16

    = 2x³ + 13x² + 26x + 16
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