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12-71.
  1. Solve each equation. Homework Help ✎

    1. (x + 2)2 – (x – 2)2 = 8

    2. = 3

    3. 11(4x) – 15 = –14

    4. 4log13(x) – 8 = 16

Square each binomial and simplify.

Multiply both sides by x(x + 2).

You will need to use the Quadratic Formula to get the answer.

Now use logs.

log13(x) = 6
Now rewrite in exponential form.