derivative

Oops Melody.

u' = 2.

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 :)

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 :))