- #1
AnTiFreeze3
- 246
- 9
Homework Statement
Simplify...
Homework Equations
Starting Equation:
³√9xy^4 * ³√12x³y
The Attempt at a Solution
(Sorry ahead of time if this is sloppy)
³√9xy^4 * ³√12x³y - I broke up each part of the cubed roots to try and simplify them³√9 * ³√x * ³√y * ³√y³ * ³√y * ³√12 * ³√x³ * ³√y³ - I then simplified the obvious cubed roots, and simplified √12 to 2√3:
y * ³√9xy * 2x * ³√3y - This is where I'm stuck.I don't understand how I can simplify if further when 9 has no rational number that can be multiplied by itself 3 times to get to 9, yet apparently the answer to it doesn't have 9 under the radical.
The answer, to help out anybody who wants to help me, is:
3xy * ³√4xy²Thanks for any help.
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