Simplify each. Express your answers using positive exponents only. Assume that

the variables are nonzero constants.

1.) (-4b-2)

0 6. (ab2)

– 1

2.) 5

4

5

4 7. a6b-2

3.) x–8  x5 8. (2x2y –3)

4

4.) 4h-2 (–2h–4) 9. (9y0)

2

5.) 5x0 – 10y0 10. (-7m– 2n-1)

-2​