derivative

Question

+3

806

3

find the derivative of

(2x+5)(x^2-x+1)

Guest Aug 9, 2015

+5

Best Answer

Oops Melody.

u' = 2.

Guest Aug 9, 2015

Guest · Answer 1 · 2015-08-09T02:44:19

Oops Melody.

u' = 2.

Melody · Answer 2 · 2015-08-09T12:46:41

find the derivative of

y= (2x+5)(x^2-x+1)

You can either expand it out first OR you can use the product rule.

Product rule y'=uv'+vu'

Let u=2x+5	v=x^2-x+1
u'=5	v'=2x-1

$\\y'=(2x+5)(2x-1)+(x^2-x+1)(5)\\\\ y'=(2x+5)(2x-1)+5(x^2-x+1)\\\\$

You can expand and simplify yourself :)

Melody · Answer 3 · 2015-08-09T03:10:26

Yes - thankyou

I can't change it from my phone.

The question asker can make the change easily though.

I am glad you were on the ball :))