Q. simpify: $\displaystyle \sqrt a^3 + 2 \sqrt a$

the answer is $\displaystyle (a+2)\sqrt a$ but but i can't seem to figure out the solution.

thanks

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- Mar 12th 2009, 07:27 PMwaven[SOLVED] Surds
Q. simpify: $\displaystyle \sqrt a^3 + 2 \sqrt a$

the answer is $\displaystyle (a+2)\sqrt a$ but but i can't seem to figure out the solution.

thanks - Mar 12th 2009, 07:36 PMmathaddict
- Mar 12th 2009, 08:12 PMwaven
- Mar 12th 2009, 08:43 PMmathaddict
- Mar 12th 2009, 08:47 PMwaven
- Mar 12th 2009, 09:37 PMmr fantastic