What is the derivative of-21x^2-3x_{+}8 ?

The derivative of-21x^2-3x_{+}8 is -42x

What is the first derivative of-21x^2-3x_{+}8 ?

The first derivative of-21x^2-3x_{+}8 is -42x

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

\frac{d}{d x} (- 21 x^{2} - 3 x_{+} 8)

- 42 x

Solution steps

\frac{d}{d x} (- 21 x^{2} - 3 x_{+} \cdot 8)

Simplify

- 21 x^{2} - 3 x_{+} \cdot 8 : - 21 x^{2} - 24 x_{+}

= \frac{d}{d x} (- 21 x^{2} - 24 x_{+})

Treat

x_{+}

as a constant

Apply the Sum/Difference Rule:

(f \pm g)^{'} = f^{'} \pm g^{'}

= - \frac{d}{d x} (21 x^{2}) - \frac{d}{d x} (24 x_{+})

\frac{d}{d x} (21 x^{2}) = 42 x

\frac{d}{d x} (24 x_{+}) = 0

= - 42 x - 0

Simplify

= - 42 x

What is the derivative of-21x^2-3x_{+}8 ?
The derivative of-21x^2-3x_{+}8 is -42x
What is the first derivative of-21x^2-3x_{+}8 ?
The first derivative of-21x^2-3x_{+}8 is -42x