Question

Find dy/dx if y = 4x² + 5x - 3​

Answer 1

$\Huge \fbox{{\color{magenta}{\textsf {\textbf {Solution :-}}}}}$

$\longmapsto\sf y = {4x}^{2} + 5x - 3$

On differentiating both sides

$\longmapsto\sf \frac{dy}{dx} = \frac{d}{dx} \: {4x}^{2} + 5x - 3$

$\longmapsto\sf \frac{dy}{dx} =8x + 5$

Answer 2

Answer:

⟼y=4x

2

+5x−3

On differentiating both sides

\begin{gathered}\longmapsto\sf \frac{dy}{dx} = \frac{d}{dx} \: {4x}^{2} + 5x - 3 \\ \end{gathered}

⟼

dx

dy

=

dx

d

4x

2

+5x−3

\begin{gathered}\longmapsto\sf \frac{dy}{dx} =8x + 5 \\ \end{gathered}

⟼

dx

dy

=8x+5