Mister Exam

Derivative of f(x)=3x³-4x²

Function f() - derivative -N order at the point
v

The graph:

from to

Piecewise:

The solution

You have entered [src]
   3      2
3*x  - 4*x 
3x34x23 x^{3} - 4 x^{2}
d /   3      2\
--\3*x  - 4*x /
dx             
ddx(3x34x2)\frac{d}{d x} \left(3 x^{3} - 4 x^{2}\right)
Detail solution
  1. Differentiate 3x34x23 x^{3} - 4 x^{2} term by term:

    1. The derivative of a constant times a function is the constant times the derivative of the function.

      1. Apply the power rule: x3x^{3} goes to 3x23 x^{2}

      So, the result is: 9x29 x^{2}

    2. The derivative of a constant times a function is the constant times the derivative of the function.

      1. The derivative of a constant times a function is the constant times the derivative of the function.

        1. Apply the power rule: x2x^{2} goes to 2x2 x

        So, the result is: 8x8 x

      So, the result is: 8x- 8 x

    The result is: 9x28x9 x^{2} - 8 x

  2. Now simplify:

    x(9x8)x \left(9 x - 8\right)


The answer is:

x(9x8)x \left(9 x - 8\right)

The graph
02468-8-6-4-2-1010-50005000
The first derivative [src]
          2
-8*x + 9*x 
9x28x9 x^{2} - 8 x
The second derivative [src]
2*(-4 + 9*x)
2(9x4)2 \cdot \left(9 x - 4\right)
The third derivative [src]
18
1818
The graph
Derivative of f(x)=3x³-4x²