Subtract: ({2a}^(2) + 5a + 3) - ( {a}^(2) - 3a - 4) ​

Question

Subtract:

`({2a}^(2) + 5a + 3) - ( {a}^(2) - 3a - 4)`
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Answer 1

2a² - a² = a²

5a - (-3a) = 5a + 3a = 8a

3 - (-4) = 3 + 4 = 7

Answer is a² + 8a + 7.