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jtvatsimBest ResponseYou've already chosen the best response.0
you mean \[a^9\times a^{18} \] right?
 one year ago

jtvatsimBest ResponseYou've already chosen the best response.0
Remember that exponents just mean to multiply a number by itself that many times. So you have 9 a's multiplying together and then 18 a's multiplying together. How many a's have you multiplied?
 one year ago

Chelsea04Best ResponseYou've already chosen the best response.0
add the powers a^m x a^n gives a^m+n
 one year ago

whpalmer4Best ResponseYou've already chosen the best response.0
for example, \[a^3*a^4 = (a*a*a)*(a*a*a*a) = a*a*a*a*a*a*a = a^7 = a^{3+4}\]
 one year ago
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