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11 May, 10:40

Which of the following shows the true solution to the logarithmic equation solved below?

log2 (X) + log2 (x+7) = 3

log2[ * (X+7) ] = 3

x (x+7) = 23

x2 + 7x-8 = 0

(x+3) (x-1) = 0

X=-8,1

+2
Answers (2)
  1. 11 May, 12:58
    0
    The answer is x=1 so the second on on edge

    Step-by-step explanation:

    I took the test
  2. 11 May, 13:30
    0
    A. x (x+7) = 23 us the correct answer i believe
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