SOLUTION: Is (9x)^2 = -81x^2. Why or why not?

Algebra.Com
Question 440855: Is (9x)^2 = -81x^2. Why or why not?
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
Is (9x)^2 = -81x^2.
No.
----------
Why or why not?
Because (9x)^2 = +81x^2

RELATED QUESTIONS

Is y=|x|+2 a function? Why or Why... (answered by crissy)
Is (2, -3) a solution of x^2 + 2y = -2? Tell why or why not. (answered by Mathematicians,oberobic)
Is 8y 2 a monomial expression. Why or Why not? (2)is to the second... (answered by rapaljer)
Given f(x)=3x+4 1. Is f(x) a function? Why or why not? 2. Is f -1(x) a function?... (answered by stanbon)
Is x^2 + 3y^2 = 9 a function? Why or Why... (answered by richwmiller)
is this relationship correct? why or why not?... (answered by ankor@dixie-net.com)
is the relationship correct why or why not?... (answered by rapaljer,Alan3354)
Is 2 x 1/3 equal to 2 1/3 why or why... (answered by stanbon)
Is the relation {(1,-1),(2,-2),(3,-3)} a function? Explain why or why not. (answered by jim_thompson5910)