Mister Exam

Derivative of f(x)=2x³-x²

Function f() - derivative -N order at the point
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The graph:

from to

Piecewise:

The solution

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   3    2
2*x  - x 
2x3x22 x^{3} - x^{2}
d /   3    2\
--\2*x  - x /
dx           
ddx(2x3x2)\frac{d}{d x} \left(2 x^{3} - x^{2}\right)
Detail solution
  1. Differentiate 2x3x22 x^{3} - 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: 6x26 x^{2}

    2. 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: 2x- 2 x

    The result is: 6x22x6 x^{2} - 2 x

  2. Now simplify:

    2x(3x1)2 x \left(3 x - 1\right)


The answer is:

2x(3x1)2 x \left(3 x - 1\right)

The graph
02468-8-6-4-2-1010-50005000
The first derivative [src]
          2
-2*x + 6*x 
6x22x6 x^{2} - 2 x
The second derivative [src]
2*(-1 + 6*x)
2(6x1)2 \cdot \left(6 x - 1\right)
The third derivative [src]
12
1212
The graph
Derivative of f(x)=2x³-x²