Posted by I NEED HELPPPP!* on Tuesday, May 20, 2008 at 5:28pm.
CAN SOMEONE PLEASE HELPPP!? I NEED HELP IN ALGEBRA, SIMPLIFYING RADICALS! SIMPLIFY THE SQUARE ROOT OF 45a SQUARED!

algebra  Sarah, Tuesday, May 20, 2008 at 5:43pm
I believe the answer is 3a square root of 5a.

algebra  Reiny, Tuesday, May 20, 2008 at 5:50pm
√)45a^2)
=√9 * √5 * √a^2
= 3a√5

algebra  Chris, Tuesday, May 20, 2008 at 5:50pm
answer is actually : 3a square root of 5.
45a^2 simplied is 9a^2 x 5
square root of 9a^2 is 3a.
Square root of 5 is radical 5.
Squaring your answer would check to see if you have the correct answer.
Thus mine is the correct one. Sarah was close.

algebra  I NEED HELPPPP!*, Tuesday, May 20, 2008 at 5:53pm
thank you sarah reiny and chris !
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