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3. Choose one of the following derivative functions and simplify to factored form, positive exponents, radical form if applicable. [4A] f' (x) = -3(2x3 + 1)2 (5x2)(3- 5x)2 + (2x3 + 1) 3(2) (4 - 3x) (-4) OR g' (x) = -3(x-1)2+ (3x+ 1) (-5) (2x + 1)2 4. Determine the equation of the tangent to the graph of the function at the indicated value. f'( 1) for f ( x ) = -x 3 5 1 4 25 . [4A] x 3/ X f' ( - 1 ) for f ( x ) = - 15 5 + - 2