2a^2 + 5a +7) - (a^2 - 3a - 1) = ?

Question

put what the answer is

Answer 1

By distributing the negative sign to the terms inside the second parentheses, we have:

2a^2 + 5a + 7 - a^2 + 3a + 1

Combining like terms, we get:

(2a^2 - a^2) + (5a + 3a) + (7 + 1)

Simplifying further,

a^2 + 8a + 8

Therefore, the answer is a^2 + 8a + 8.