Solve for x, given the equation Square root of x plus 9 − 4 = 1.
x = 16, solution is not extraneous
x = 16, solution is extraneous
x = 34, solution is not extraneous
x = 34, solution is extraneous

Question

Solve for x, given the equation Square root of x plus 9 − 4 = 1.
x = 16, solution is not extraneous 
x = 16, solution is extraneous 
x = 34, solution is not extraneous 
x = 34, solution is extraneous

gabylovesyou · Answer

@SolomonZelman ik its x = 16 but idk if its extraneous or not

solomonzelman · Answer

$\large\color{slate}{\displaystyle \sqrt{x+9}-4=1}$

solomonzelman · Answer

yes, then x=16.

extraneous solution is a solution that doesn't satisfy the original equation.
When you plug in 16 for x , does that make the statement $\large\color{slate}{\displaystyle \sqrt{x+9}-4=1}$  true?

gabylovesyou · Answer

yes

gabylovesyou · Answer

so its A

solomonzelman · Answer

that means it is not an extraneous solution.

solomonzelman · Answer

yes