Question

Help me differentiate y=x^4 -2x^2+8x

Answer 1

ake ln of both sides to get

ln y = ln(x^8x)

use log rules to move the 8x

ln y = 8x*ln x

take the derivative of both sides (using chain rule on ln y since y is a function of x)

y' / y = (8)(ln x) + (8x)(1/x)

y' / y = 8(ln x) + 8

multiply both sides by y

y' = y [8(ln x)+8]

substitute x^8x for y

y' = x^8x[8(ln x)+8]

Answer 2

move this to math thanks

Answer 3

this is English your in

Answer 4

close this and move it to math and people will help you there

Answer 5

stop talking

Answer 6

cus