Question

Expand, answer should be a polynomial in standard form

(5a+2)(a+4)=

Answer 1

5a²+22a+8

Step-by-step explanation:

(5a+2)(a+4)

5a² + 20a + 2a + 8

5a² + 22a + 8

Answer 2

The standard form of the expression (5a+2)(a+4) is
`5a^(2)  + 22 a + 8`.

Explanation:

Here, the given expression is (5a+2)(a+4).

Now, (5a+2)(a+4) = 5a(a+4) + 2(a+4)

=
`5a^(2)  + 20 a + 2a + 8`

=
`5a^(2)  + 22 a + 8`

or,
`(5a+2)(a+4) = 5a^(2)  + 22 a + 8`

Also, Standard Quadratic form is
`ax^(2)  +  bx + c = 0`

Hence, the standard form of (5a+2)(a+4) is
`5a^(2)  + 22 a + 8`.