Question

Add. Simplify by collecting like radical terms if possible, assuming all expressions under radicands express nonnegative number:

sqrt{5a}+3sqrt{125a^{3}}

Answer 1

sqrt{5a}+3sqrt{125a^{3}}

Answer 2

grr it wont post it right XD

\[\sqrt{5a}+3\sqrt{125a^{3}} \]

Answer 3

\[125=5^3\] so you get
\[\sqrt{5a}+15a\sqrt{5a}\]
to combine write
\[(1+15a)\sqrt{5a}\]

Answer 4

I got \[15\sqrt{5a}\] but I have and icky feeling Im wrong

Answer 5

you have to take an a out as well

Answer 6

oooh so very close! thanks again satellite!

Answer 7

yw

Answer 8

while I have you here can I ask another? you seem to be comfortable with these