Question

$25^ {\frac{1}{4}} \times 25^ {\frac{1}{4}}$

• A. 5
• B. 25
• C. 1
• D. 4

Answer 1

Answer:

A. 5

$25^ {\frac{1}{4}} \times 25^ {\frac{1}{4}}$

$=(25^{\frac14})^2=25^\frac24=25^\frac12$

$=5$

$a^m\times{a^m}=(a^m)^2$

$(a^m)^2=a^{2m}$