Question

f(x)= (45x^2-5x-4)/〖(10x^2+1)〗^2 . Determine the stationary points of f(x)

Answer 1

Find dy/dx, then equate dy/dx to 0, then solve for x from dy/dx=0

Answer 2

Quotient rule

Answer 3

alryt, i've diff http://www.wolframalpha.com/input/?i=%2845x%5E2-5x-4%29%2F%2810x%5E2+%2B1%29%5E2

Answer 4

Use that answer equals to 0

Answer 5

do i solve x from the polynomial ?
\[-(5(180x^3-30x^2-50x+1))/(10x^2+1)^3 =0\]

Answer 6

yep

Answer 7

kk, thank you!

Answer 8

yw