Mathematics
fatma
2015-10-29 03:45:57
Idk how to do this expression
ANSWERS
Benny2992
2015-10-29 06:18:32

To simplify the expression 5^-7 *5^12 *5^-2 Use the power rule a^ma^n = a^(m+n) to combine exponents. 5^(-7+12) *5^-2 Add -7 and 12 to get 5. 5^5 *5^=2 Use power rule to combine exponents. 5^5-2 Subtract 2 from 5 to get 3. 5^3 Raise 5 to the power of 3 to get 125. 125

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