How is adding polynomials different from subtracting like terms?

Adding and subtracting polynomials may sound complicated, but it's really not muchdifferent from adding and subtracting numbers. Any terms that have the same variables with the same exponents can be combined. Combine like terms, paying close attention to the signs.

Many things that seem threatening in the dark become welcoming when we shine light on them

One statement could be 12/4=3