Question

Simplify each expression. Assume all variables represent
nonzero real numbers.


-40^0- 30^0

Answer 1

Since a⁰ = 1 for all 0<a<∞,
-40^0- 30^0
= -(40^0+30^0)
= -(1+1)
= -2

Answer 2

a2 c-4