Question

Please help!!! 3x^5 sqrt x + 7/x^2 sqrt x

Answer 1

Can you add some parentheses. Not sure what you are saying.
I assume you want to simplify this expression?

Answer 2

its derivatives.

Answer 3

(3x^2)(sqrt x) + 7/(x^2)(sqrt x)

Answer 4

in the second term, what is in the denominator?
\[x^{2} \sqrt{x}+\frac{7}{x^2 \sqrt{x}}\] ?

Answer 5

7 divided by x sqaured times the square root of x

Answer 6

One way to do this, is change sqrt(x) to x^(1/2) and add exponents
for the second term, make it a negative exponent, and bring it up top.

Answer 7

make sense?

Answer 8

not really. ill be in tutoring today. I just had to figure this problem out. all my answers keep coming up wrong.

Answer 9

You know \( x^{\frac{1}{2}} = \sqrt{x} \)
and \( 3x^{5} \cdot x^{\frac{1}{2}} = x^{\frac{11}{2}} \)
and for the second term you get
\( 7x^{-\frac{5}{2}} \)
assuming I can add fractions!

Answer 10

The use the power rule
\[\frac{d}{dx} x^{n}= n x^{n-1}\]

Answer 11

* fixing typo:
3 x^{11/2} +7x^{-5/2}