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8 December, 21:42

Factoring trinomials?

x^2+8x+15

+1
Answers (2)
  1. 8 December, 23:07
    0
    You nee 2 numbers whose sum is + 8 and whose product is + 15.

    That is 3 and 5.

    so the answer is (x + 3) (x + 5)
  2. 9 December, 01:13
    0
    X^2+8x+15

    = x^2 + 5x + 3x + 15

    = x (x+5) + 3 (x+5)

    = (x+5) (x+3)
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