Question

Which expression is equivalent to x^5 • x^2?
x^3
x^7
x^10
(x + x)^7

Answer 1

add the indices

a^n * a^m = a^(n+m)

Answer 2

?

Answer 3

when you multiply terms like the above you add the exponents (indices)

eg x^2 * x^8 = x ^(2+8) = x^10

Answer 4

so x^7

Answer 5

right