Help simplifying this expresion.?

Question

when it comes to simplifying expressions, i don't have to much of a problem, but this one is making me waste paper, some help is apreicated...

4√x+3√xy+7√xy-√x

Answer 1

4√x+3√xy+7√xy-√x
= 3√x + 10√xy
= 3√x + 10√x√y
= √x(3 + 10√y)

Answer 2

First you need to group like terms. So, we now have [4√x - √x] and [3√xy + 7√xy]. Now that we have our common terms together, we can go ahead and do simple arithmetic to get our answer. [4√x - √x] is 3√x. [3√xy + 7√xy] is 10√xy. After that, you cannot simplify anymore without knowing what the variables are. You are left with

3√x +10√xy

Hope this helps!

Answer 3

4√x+3√xy+7√xy-√x
3√x+ 10√xy
√x(3+10√y)

Answer 4

Combine like terms to get 3√x + 10√xy; then factor out √x to get √x * (3 + 10√y) (I assume the y is under the radical.)

Answer 5

i think you are asking (4√x)+(3√xy)+(7√xy)-(√x)
just combine like terms.
(4√x) - (√x) = 3√x
(3√xy) + (7√xy) = 10√xy
so your answer is (3√x) + (10√xy)

Answer 6

3 root (x) + 10 root (xy)

Answer 7

4sqrt(x) + 3sqrt(xy) + 7sqrt(xy) - sqrt(x)
(4 - 1)sqrt(x) + (3 + 7)sqrt(xy)
3sqrt(x) + 10sqrt(xy)

Answer 8

4 - x^2 = 4 - 4 ( sin^2)x = 4 (cos^2) x, the sq. root of it really is two cos x. so x/(sq. root of (4-x^2)) = 2 sin x/(2 cos x) = tan x. (The given decision of x guarantees that the answer isn't - tan x.)