Question

Simplify. 12x • 3x this is for my math class the dot means to multiply

Answer 1

1. Answer:  36x²

Step-by-step explanation:

Here we will do more than give you the solution to 12x × 3x. 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, 12 and 3 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:

12 × x × 3 × x =

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

12 × 3 = 36

x × x = x²

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

12x × 3x = 36x²

Answer 2

Answer:

36x^2 or 36 times x squared.

Step-by-step explanation:

If x was two it would equal 144. If you replace x with two in my simplification it also equals 144.