5 x 5 x 5 = 51+1+1 = 53
5 x 52 x 56 = 51+2+6 = 59
(5)3 = 51x3 = 53
(52)4 = 52x4 = 58
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xx = x2 In exponential form the expression becomes x2y. Technically, it would be correct to write x2y1 but, an exponent of 1 is simply omitted in ordinary mathematics.
Write abcbabc in exponential form
5x5x5 5x5x5 5x5x5 5x5x5
5 x 5 x 5 x 5 = 54 .
625 = 6.25 × 102