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Use the quotient rule to find f'(x):

f(x) = [(x+4)(x-5)]/[2x(x+3)]

For the first I put them together?
Can someone please complete this.

  • Calculus -

    I would expand it first to get
    f(x) = (x^2 - x - 20)/(2x^2 + 3x)

    now use the quotient rule

  • Calculus -

    f(x) = 2x^4+x^3-43x^2-60x

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