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 one year ago
Solve the equation. Identify any extraneous solutions.
sqrt a = 8
A. –64 is a solution of the original equation. 64 is an extraneous solution.
B. 64 is a solution of the original equation.
C. 64 is a solution of the original equation. –64 is an extraneous solution.
D. no solution <<<
 one year ago
Solve the equation. Identify any extraneous solutions. sqrt a = 8 A. –64 is a solution of the original equation. 64 is an extraneous solution. B. 64 is a solution of the original equation. C. 64 is a solution of the original equation. –64 is an extraneous solution. D. no solution <<<

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tyteen4a03
 one year ago
Best ResponseYou've already chosen the best response.1To get rid of square roots, square both sides.

precal
 one year ago
Best ResponseYou've already chosen the best response.1dw:1359074224200:dwdo just like tyteen4a03 suggested

tyteen4a03
 one year ago
Best ResponseYou've already chosen the best response.1@Hally The answer is B. Whenever you are raising a number to an even number, the negative sign disappears. (If you need proof just ask.)

Hally
 one year ago
Best ResponseYou've already chosen the best response.0i know that part thanks! :)

precal
 one year ago
Best ResponseYou've already chosen the best response.1dw:1359074661681:dwquestion is, is this true?

Hally
 one year ago
Best ResponseYou've already chosen the best response.0no. sqrt 64 = 8 and 8 is not equal to 8

precal
 one year ago
Best ResponseYou've already chosen the best response.1then that means that the solution is extraneous

Hally
 one year ago
Best ResponseYou've already chosen the best response.0oh. so the answer is "64 is a solution of the original equation. –64 is an extraneous solution" .... right?
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