I came up with
-5asqrt2
I'm I right or can this be really simplified?
2006-11-04 03:53:43 · 5 answers · asked by olivia b 1 in Education & Reference ➔ Home Schooling
a(sqrt)8-3(sqrt)2a^2 =2a(sqrt)2-3a(sqrt)2 =(sqrt)2(2a-3a)=- a(sqrt)2
2006-11-04 23:13:28 · answer #1 · answered by alpha 7 · 0⤊ 0⤋
I think your question is a little ambiguous.
Do you mean a * sqrt(8) - 3 * sqrt(2a^2)?
Or do the brackets go elsewhere?
If the brackets are right, then:
sqrt(2a^2) is equal to a*sqrt(2)
and
sqrt(8) = sqrt(2 * 2 * 2) = sqrt(2 * 2^2) = 2*sqrt(2)
So now we've got 2a*sqrt(2) - 3a*sqrt(2)
Which can be factored to
sqrt(2) * (2a - 3a)
which becomes
sqrt(2) * (-a)
So I think the answer might be -a*sqrt(2)
2006-11-04 19:08:01 · answer #2 · answered by mattgwwalker 2 · 0⤊ 0⤋
I believe the answer is 2a^2 - a. Every other variable cancels out and you can't reduce a^2 - a.
2006-11-04 12:04:04 · answer #3 · answered by Link 4 · 0⤊ 0⤋
wow i dont kno good luck with that
2006-11-04 21:46:15 · answer #4 · answered by Anonymous · 0⤊ 0⤋
ask your teacher, in your case, your mom
2006-11-04 19:20:31 · answer #5 · answered by mr.jeremy 2 · 0⤊ 1⤋