Question

What is 2a+a+2a+a ????

Answer 1

Hello there!

Whenever you see a variable (letter) without a number in front of it, the "number" would be 1!

Example:

a = 1a


So simply do basic math! For now, ignore the letters!

2a + a + 2a + a

becomes

2 + 1 + 2 + 1

Once you have your answer, simply add an a to the end!

Your answer will have NO exponents because you're adding! If you were multiplying or dividing the variables, then exponents would be an issue.

Hope this helped! :)

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Answer 2

Just combine like terms