Expand, answer should be a polynomial in standard form

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

The standard form of the expression (5a+2)(a+4) is .

Step-by-step explanation:

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

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

=

=  

or,  

Also,  Standard Quadratic form is

Hence, the standard form of (5a+2)(a+4) is .

5

step-by-step explanation: