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pottersheep

Derive y= (3x-9)^9(x+2)^6 I get y1= 162(3x-9)^8(x+2)^5?

  • one year ago
  • one year ago

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  1. pottersheep
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    The answer is 45x(3x-9)^8(x+2)^5...I don't get it!

    • one year ago
  2. zenai
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    you must use the product rule combined with using the chain rule when you find each derivative.

    • one year ago
  3. pottersheep
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    Yep that's what I did! Should I show you my steps?

    • one year ago
  4. zenai
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    yes please, let me take a look

    • one year ago
  5. pottersheep
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    y = (3x-9)^9(x+2)^6 y1 = 9(3)(3x-8)^8 (6)(1)(x+2)^5 y1 = 162 (3x-9)^8(x+2)^5

    • one year ago
  6. pottersheep
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    Thank you

    • one year ago
  7. pottersheep
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    Have I gone wrong somewhere?

    • one year ago
  8. zenai
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    yes you forgot to put an addition sign. the product formula is a*d/dx(b) + d/dx(a) * b

    • one year ago
  9. pottersheep
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    OHHHHHHH

    • one year ago
  10. zenai
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    when you take the d/dx of the a and the b terms, that's when you execute the sign rule. this is an annoying question lol it will take some time to compute it all

    • one year ago
  11. pottersheep
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    Thank you!!!!!

    • one year ago
  12. zenai
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    no problem!

    • one year ago
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