Question

Perform the requested operation or operations.

f(x) = 4x + 7, g(x) = 3x2

Find (f + g)(x).

Answer 1

Te answer is 3x² + 4x + 7

f(x) = 4x + 7
g(x) = 3x²

(f + g)(x) = f(x) + g(x)
= 4x + 7 + 3x²
= 3x² + 4x + 7

Answer 2

`4x+7+3x^2`

Explanation:

We have given two function f(x) and g(x)

We need to operate
`(f+g)(x)=f(x)+g(x)`

Substituting the values in the above format we will get

`(4x+7)+(3x^2)` after opening the parenthesis we will get

`\Rightarrow 4x+7+3x^2`

We will get after simplification the above expression

Addition of these two functions give us a quadratic expression means an expression with degree or highest exponent two.