Asked by Chris
Solve sqrt:9x+55=x+5, Simplify and use comma to separate the answers
Answers
Answered by
Henry
sqrt(9x+55) = x + 5,
Square both sides:
9x + 55 = x^2 + 10x + 25,
x^2 + x - 30 = 0,
(x - 5)(x + 6) = 0,
x - 5 = 0,
X = 5.
x + 6 = 0,
X = -6.
Solution Set: X = 5,-6.
Square both sides:
9x + 55 = x^2 + 10x + 25,
x^2 + x - 30 = 0,
(x - 5)(x + 6) = 0,
x - 5 = 0,
X = 5.
x + 6 = 0,
X = -6.
Solution Set: X = 5,-6.
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