what is 7a to the power of 2 - 2a to the power of 2
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Answer:
5a²
Step-by-step explanation:
It is 5a² because 7a² and 2a² are like terms, so we are able to subtract them. If we subtract 7-2 we get 5. It is the same thing, 7a²-2a² is equal to 5a²
Hope this helps!