Hi taniasingh,
The Exponent rules that you will be expected to know for the GMAT are really about multiplication and division (although sometimes you will simply be asked to "rewrite" an exponent-based calculation).
When MULTIPLYING numbers that have the SAME base, you ADD the exponents. For example:
(3^2)(3^2) = 3^(2+2) = 3^4
You can actually prove that this is correct by doing the arithmetic....
(3^2)(3^2) =
(9)(9) = 81
3^4 = (3)(3)(3)(3) = 81
When dealing with variables, the
...
The Exponent rules that you will be expected to know for the GMAT are really about multiplication and division (although sometimes you will simply be asked to "rewrite" an exponent-based calculation).
When MULTIPLYING numbers that have the SAME base, you ADD the exponents. For example:
(3^2)(3^2) = 3^(2+2) = 3^4
You can actually prove that this is correct by doing the arithmetic....
(3^2)(3^2) =
(9)(9) = 81
3^4 = (3)(3)(3)(3) = 81
When dealing with variables, the
...
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