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4 March, 23:50

Factoring trinomials?

x^2+8x+15

+3
Answers (2)
  1. 5 March, 01:23
    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. 5 March, 02:05
    0
    X^2+8x+15

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

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

    = (x+5) (x+3)
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