Thursday

September 18, 2014

September 18, 2014

Posted by **Jane** on Sunday, September 18, 2011 at 1:56pm.

then dy/dx = ?

I've gotten to the point where i have

(5((3x^2)+ 5)^4)(4(x+2)^3)(6x), what do i do next? It's a multiple choice question anf this is not one of the answers listed. Any help would be appreciated. Thanks!

- AP Calculus AB -
**Reiny**, Sunday, September 18, 2011 at 4:56pmYour "first-line" derivative is

dy/dx = 5(3x^2 + 5)^4(6x)(x+2)^4 + 4(x+2)^3(3x^2+5)^5

= 2(x+2)^3(3x^2 + 5)^4 [ 15x(x+2) + 2(3x^2+5) ]

= 2(x+2)^3(3x^2 + 5)^4 [ 15x^2 + 30x + 6x^2 + 10 ]

= 2(x+2)^3(3x^2 + 5)^4 (21x^2 + 30x + 10)

- AP Calculus AB -
**Juliet**, Thursday, November 10, 2011 at 10:32pmThank you!

**Answer this Question**

**Related Questions**

Pre-Calculus - Write the standard form of the equation of the circle that passes...

English - 1. If I had studied hard, I could have gotten a higher score. 2. If I ...

Computers - I have to generate OOP code for a system that tracks my CDs and DVDs...

Calculus - How do you use imlicit differentiation to differentiate e^(xy)? I ...

Algebra 1 - How would you solve the problem (w - 2)^2 ???? So far I've gotten w^...

Calculus - 26. Find all points of inflection. f(x) = (5x-3)^(1/3) Note: I have ...

Is their a history tutor on Board right now? - I really need help with my ...

Geometry - Okay, this is a problem that I've tried over ten times before getting...

Math (Combinatorics) - How many 4 digit positive integers have the ones digit a ...

Calculus - Find the sum of all prime numbers between 1 and 100 that are ...