# Thread: differentiate x/a

1. ## differentiate x/a

Hello I need to differentiate 3x^2-x/2-7, and I can not figure out how to differentiate x/2

Thanks.

2. Originally Posted by gtal3x
Hello I need to differentiate 3x^2-x/2-7, and I can not figure out how to differentiate x/2

Thanks.
$
\frac{d}{dx} \left(a x\right) = a
$

3. danny arrigo

Thanks for reply, if I understood correct, that x/a = a (differentiated)? So 3x^2-x/2-7 = 6x-2 (differentiated)?

4. Originally Posted by gtal3x
danny arrigo

Thanks for reply, if I understood correct, that x/a = a (differentiated)? So 3x^2-x/2-7 = 6x-2 (differentiated)?
No, he said the derivative of ax is a, not of x/a. x/a is (1/a)x. Now what is its derivative?