SOLUTION: if y^2=9; then y=?

Algebra ->  Algebra  -> Inequalities -> SOLUTION: if y^2=9; then y=?      Log On

Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

   

Question 135414: if y^2=9; then y=?
Found 2 solutions by stanbon, shibili balakrishnan:
Answer by stanbon(48546) About Me  (Show Source):
You can put this solution on YOUR website!
if y^2=9; then y=?
y^2-9=0
(y-3)(y+3)= 0
y = 3 or y = -3
===================
Cheers,
Stan H.

Answer by shibili balakrishnan(3) About Me  (Show Source):
You can put this solution on YOUR website!
y^2>9
(y^2)^1/2>(9)^1/2
y>3