Question

find the derivatives of the given functions
5. g(x)=x^4+3x^3-8x-7

Answer 1

repeated applications of the power rule \(\frac{d}{dx}x^n=nx^{n-1}\)

Answer 2

http://education-portal.com/cimages/multimages/16/powerrule1.png

Answer 3

do you mean the answer is 8x-3

Answer 4

no, see your exponents, as follow as satellite73 suggested

Answer 5

you just have a straight polynomial, so the power rule by itself will do

Answer 6

so what is ur answer

Answer 7

\(\huge ax^n = (n\times a)x^{n-1}\)

Answer 8

let's try the 1st term, you have \(\bf x^4\\
ax^n = (n\times a)x^{n-1}\\
1x^4 = (1 \times 4)x^{4-1}\)

Answer 9

oh ok. i had 4x^3+9x^2 - 8

Answer 10

im i right?

Answer 11

\(8x\\
ax^n = (n\times a)x^{n-1}\\
8x^1 = (1 \times 8)x^{1-1}\\
x^0 = 1\\
8\times 1 = 8
\)

yes :)

Answer 12

and 7 is a constant and the derivative of a constant is 0

Answer 13

oh ok.fanks so much