How do you sole an expressions that have exponents?

When dealing with exponents, you can only simplify unless any letters have a given value.

Example:

3x + 2x^2 - 1x + 2

3x and -1x can be combined to 2x

2x^2 + 2x + 2 would be the simplified expression.

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step-by-step explanation:

2 apples

step-by-step explanation:

taking away equals subtraction. 6-4=2