Question

What is the value of expression? 5^−8 • 5^−4 A. 5^32 B. 54 C. 5^−4 D. 5^−12

Answer 1

when we multiply same bases we should add their exponents so just add exponents \[\huge\rm x^m \times x^n=x^{m+n}\]

Answer 2

ok

Answer 3

so what did you get ? \[\large\rm 5^{-8} \times 5^{-4} =5^{??}\] ?

Answer 4

5^14

Answer 5

woops i mean 5^12

Answer 6

sorry

Answer 7

both exponents are negative so -8-4 = ?