What is2a2 plus 5a plus 2?

Answer 1

As stated it is just an algebraic expression.

However, if we equate it to zero then it can be solved.

2a2 + 5a + 2 = 0

This can be factored

(2a + 1)(a + 2) = 0

This means that (2a + 1) = 0 or (a + 2) = 0

Then either 2a = -1 : a = -1/2

or a = -2