SOLUTION: Solve the radical equation, and check all proposed solutions.
Square root of 14x-21 equals x+2
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Question 517939: Solve the radical equation, and check all proposed solutions.
Square root of 14x-21 equals x+2
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Square both sides:
Collect like terms:
Factor and solve the quadratic. Hint: it is a perfect square.
Hint: Since it is a perfect square, you will get one root with a multiplicity of 2. Hence, you only have to make one validity check. If you come up invalid, write back because you have an error somewhere.
John
My calculator said it, I believe it, that settles it
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