Answer:
Add 3 to both sides and subtract 8x from both sides.
Explanation:
The standard form of a quadratic equation is

Here a should not be zero.
Now, we have to write the given equation in this form
we have to take 8x and -3 to the left side of the equation in order to write the equation in standard form.
Therefore, we have to subtract 8x and add 3 to both sides of the equation.
When we do this operation, we'll get the equation in standard form which is given by

Hence, option is correct.
Add 3 to both sides and subtract 8x from both sides.