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3 votes
Find the solution of 4 times the square root of the quantity of x plus 2 equals negative 16, and determine if it is an extraneous solution.

2 Answers

6 votes
Your wording amounts to the equation
4*sqrt(x)+2=-16
4*sqrt(x)=-18
sqrt(x)=-9
but square roots are nonnegative so no solution exists.

User Aramis
by
7.1k points
5 votes

Solution is x = 14

Solution is not extraneous.

User MMMTroy
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7.6k points