Resources
Testimonials
Plans
Sign in
Sign up
Resources
Testimonials
Plans
Home
Math Problems
Precalculus
Absolute values of complex numbers
Ernesto solves the equation below by first squaring both sides of the equation. What extraneous solution does Ernesto obtain?
Get tutor help
Find the absolute value.
\newline
∣
5
∣
\lvert 5 \rvert
∣
5
∣
\newline
Simplify all radicals in your answer.
\newline
______
Get tutor help
Find the absolute value.
\newline
∣
8
∣
|8|
∣8∣
\newline
Simplify all radicals in your answer.
\newline
______
Get tutor help
Solve for
2
x
<
15
2x<15
2
x
<
15
. Your answer must be simplified.
Get tutor help