simplify? question in comments

Question

anonymous · Answer

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anonymous · Answer

is it (144a)^3 or 144(a^3) ?

anonymous · Answer

144(a^3)

anonymous · Answer

k, give me a second...

anonymous · Answer

i suck..

anonymous · Answer

it's all good haha i couldn't get it either! my answer doesn't make sense

anonymous · Answer

I'm not sure which direction to take, if I should change it into exponents or keep it as radicals

mathlegend · Answer

@DemolisionWolf might I ask what did you get so far?

anonymous · Answer

i broke it down like this:
(2/5)*sqrt(11a)sqrt(4) + sqrt(36a)sqrt(4) - (1/2)sqrt(11a)
so now I have a sqrt(4) and a sqrt(11).... maybe this is more like a polynomial?

mathlegend · Answer

I basically have...

$$\frac{ 4 }{ 5 }\sqrt{11a} + 12a \sqrt{a} - \frac{ \sqrt{11a} }{ 2 }$$

mathlegend · Answer

But I am not that sure of this...

anonymous · Answer

@MathLegend @DemolisionWolf the textbook says:
(3/10)(sqroot 11a) +(12a sqroot a) , a is greater than or equal to 0

mathlegend · Answer

as the answer?

anonymous · Answer

yep
$$\frac{ 3 }{ 10}\sqrt{11a}+12a \sqrt{a}, a \ge0$$

mathlegend · Answer

okay I played around with the numbers... and I got two parts correct... so let me show you how I did the two parts and see if we can figure out the next part.

mathlegend · Answer

$$\frac{ 2 }{ 5 }\sqrt{44a}$$

mathlegend · Answer

The highest perfect square that goes into 44 is... what?

anonymous · Answer

I got it figure out now, if any one cares

mathlegend · Answer

Yeah, I got the whole thing too but he is offline. :(

anonymous · Answer

oh really haha *high five us*

anonymous · Answer

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