Select the answer choice that equals the given expression. 4^6 x 4^3
a) 4^9
b) 4^18
c) 12^9
d) 64^9

The rule you use is

a^b * a^c = a^(b+c)

The base stays the same at 'a' the whole time. We add the exponents. If the bases were different on the left hand side, then we cannot use this rule.

In this case, a = 4, b = 6, c = 3.

4^6 * 4^3 = 4^(6+3) = 4^9

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.