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4 August, 06:13

The expression (x+3) (x+5) is equivalent to?

x2-2x+15

x2+2x+15

x2+8x+15

x2-8x+15

+3
Answers (1)
  1. 4 August, 10:09
    0
    B. x^2 + 8x + 15

    Step-by-step explanation:

    Use FOIL

    First

    Outside

    Inside

    Last

    F: x * x = x^2

    O: x * 5 = 5x

    I: 3 * x = 3x

    L: 3 * 5 = 15

    Combine like terms

    5x + 3x = 8x

    x^2 + 8x + 15

    B. x^2 + 8x + 15
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