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Mathematics 12 Online
OpenStudy (anonymous):

find dy/dx: y=5u^2 + u -1 u=3x+1 I get 3(20x+11) or (60x+33)

OpenStudy (anonymous):

Once you substitute 3x+1for u into the original equation, y, you simplify a little bit. I got y=45x^2+33x+5. So dy/dx is 90x+33.

OpenStudy (anonymous):

I made an error in multiply, I got it now thanks

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