simplify the following expression by combining like terms: 1 + 5a + 7a² + a + 3 ?a² + a +

Explanation:

Step1: Combine the constant terms

$$1 + 3=4$$

Step2: Combine the terms with the variable (a)

$$5a+a=(5 + 1)a=6a$$

Step3: The term with (a^{2}) remains as it is

The term (7a^{2}) has no like - terms to combine with.

Answer:

(7a^{2}+6a + 4)