Find x so the distance between (x,7) and (4,5) is √5.

Question

2 answers to this question.

Answer 1

Apply squre root on  each side.

Bring all terms to one side.

x(x -5)-3(x -5) = 0

(x -5)(x -3) = 0

x -5 = 0 and x -3 = 0

x  = 5 and x  = 3.