When multiplying exponents, such as #x# times #x#, would the answer be #x^2# or #2x#?

1 Answer
Apr 12, 2016

#x^2#

Explanation:

Recall that an exponent tells us how many times a value is multiplied by itself.

For example:

  • #color(red)2^color(blue)2# means to multiply #color(red)2# by itself #color(blue)("two")# times
  • #color(red)4^color(blue)1# means to multiply #color(red)4# by itself #color(blue)("once")#
  • #color(red)x^color(blue)3# means to multiply #color(red)x# by itself #color(blue)("three")# times

In your case, #x^2# means that #x# is multiplied by itself #2# times, or "#x*x#".

In contrast, #2x# means #x# is multiplied by #2#. You can think of #2x# as being "#x+x#" (#x# plus #x#).