If you're multiplying, it's a to the sixteenth. If you're dividing, it's a to the second.
1/10 to the 7th power equals 1,000,000
You can make it 4 to the 9th power and you will still get the same answer.
112x9y9 128x2y7 -80x7y2 The GCF is 16x2y2
10-7 = 0.0000001
5.3965953e-16
5/x4
100 to the 9th power is 1,000,000,000,000,000,000 (one quintillion).
7th of the 9th
9 to the negative 9th power is 2.58117479e-9
81
1
You can't simplify that expression, unless you know specific values for the variables.