Algebra
posted by Amanda .
Find X such that the point (X, 8) is 13 units from (7, 4)

√((x7)^2 + 12^2) = 13
square both sides and expand
x^2  14x + 49 + 144 = 169
x^2  14x +24 = 0
(x12)(x2) = 0
x = 12 or x = 2
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