Question

Express in power notation : (1)125 (2)256 (3)-343 (4)49/25 (5)-8/27 (6)81/625

Answer 1

Dear student
(1) 125 = 5 × 5 × 5 = 5^3
(2) 256 = 2^8
(3) -343 = -7 × -7 × -7 =(-7)^3
(4) 49/25 =( 7 × 7)/(5 × 5 )= (7/5)^2
(5) -8/27 =( -2 × -2 × -2)/(3 × 3 × 3 )=(-2/3)^3
(6) 81/625 =( 3 × 3 × 3 × 3)/(5 × 5 × 5 × 5)=(3/5)^4
regards.