It is 1 over r squared, or r to the negative second power.
x^8 / x^2 = x^6 You will notice it is just a matter of subtracting exponents.
Three divided by three to the negative 4th power is 243.
x to the power of 6
9. Any negative number squared is positive.
10 to the negative 12 power
That is 1/9x2
eight squared=64 eight to the negative tenth power= the tenth root of 8 if multiplied together= the eighth root of 8
10-7 = 0.0000001
10-4 = 1/104 = 0.0001