My understanding of this is.
10/x^2
Step 1
I'm dividing 10 by constant to a power, so I can then multiply 10 by the constant and invert the power (from a positive to a negative in this instance).
Step 2
I can multiply the constant and bring the power down to a multiply, IF I -1 the power, thus:
(x^-2)
to
(-2[from the power]x^-3[from ^-2-1 because you drop the power to a multiplication]
I'm pretty sure I'm wrong because of the circle in this image.
So can someone tell me where my maths is wrong.
Or is there anyone I'm able to share a call with for an hour so I can get my head around what algebraic methods to use in calculus.