How do you simplify 25⋅2−42 and write it using only positive exponents?
2 Answers
Jan 3, 2018
1
Explanation:
Given
First use the property that
Explanation:
using the law of exponents
∙xam×an=a(m+n)
⇒25×2−42=2(5+(−4))2=25−421=2121=21−1=20=1
Or simply
2121=22=1