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4x × 2x = ?
What is 4x times 2x?


Here we will do more than give you the solution to 4x × 2x. We will also explain and teach you how we came up with the answer, so you can understand it and solve similar problems in the future without help.

In this problem, 4 and 2 are the coefficients and two Xs are the variables. When a coefficient is next to a variable there is an invisible multiplication sign. So you could rewrite the problem as follows:

4 × x × 2 × x =

So now you can multiply what are the same. You can multiply the coefficients together and the x variables together as follows:

4 × 2 = 8

x × x = x2


Then you put the answers together and make the multiplication sign invisible again to get the following answer:

4x × 2x = 8x2


Do you think you can do it on your own now? If so, try the next problem on our list: What is 4x times 3x



More information
from Research Maniacs:


If you multiply two same variables with exponents, you simply keep the variable and add the exponents. Also x with no exponent is the same as x1.

Here are some problems with answers that you should know based on what you learned on this page:

4x × 2x2 = 8x3

4x × 2x3 = 8x4

4x × 2x4 = 8x5

4x2 × 2x = 8x3

4x2 × 2x2 = 8x4

4x2 × 2x3 = 8x5

X times X Calculator
For other numbers, go here for our popular "X times X Calculator.


 


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