Simplify ( 5 × 5 × 5 × 5 × 5 )5 ×(5 × 5 × 5 )5 ÷ 5 = (125)? .
Answer & explanation
Correct answer: option 3
(5 × 5 × 5 × 5 × 5 )5 × (5 × 5 × 5)5 ÷ 5 = (125)?
= (5 × 5 × 5)5 × (5 × 5)5 × (125)5 ÷ 5 = (125)?
= (125)10 × 125 × 125 × 51 × 52 = (125)?
= (125)10 + 2 + 1 = (125)?
= (125)13 = (125)?
? = 13