Question

Simplify the expression by combining like terms:

Answer 1

Explanation:

`1 + 5a + 7a^(2)+a+3\\`

so you have
`7a^(2)`

5a + a = 6 a

and 1 + 3 = 4

Answer:
`7a^(2) + 6a + 4`

Answer 2

7a² + 6a + 4

Explanation:

Now we have to,

→ Simplify the given expression.

The expression is,

→ 1 + 5a + 7a² + a + 3

Let's simplify the expression,

→ 1 + 5a + 7a² + a + 3

→ 7a² + 5a + a + 1 + 3

→ (7a²) + (5a + a) + (1 + 3)

→ 7a² + (6a) + (4)

→ 7a² + 6a + 4

Hence, answer is 7a² + 6a + 4.