Question

Function Operations :- If f(x) = 7x + 5 and g(x) = 2x2 – 5,
find f(x) + g(x).

Answer 1

Answer:

2x² + 7x = x(2x + 7)

Step-by-step explanation:

f(x) = 7x + 5

g(x) = 2x² - 5

f(x)+g(x) = 7x + 5 + 2x² - 5

= 7x + 2x²

= 2x² + 7x

Answer 2

Answer: The value of f(x) + g(x) is x ( 2x+7) if f(x) = 7x + 5 and g(x) = 2x² - 5.

Step-by-step explanation:

In the given question we have to find f(x) + g(x).
Both the composition of functions and their combination will be examined. To put it another way, we will take two functions and combine them to create a single new function. It is actually rather easy to join functions using algebraic procedures.

we can say (f + g) (x) =  f(x) + g(x)

Here f(x) = 7x + 5 and g(x) = 2x² - 5
To find  f(x) + g(x) we will add both the functions

f(x) + g(x) = 7x + 5 + 2x² - 5
f(x) + g(x) = 7x + 2x²

∴ f(x) + g(x) = x ( 2x+7)

Hence, the value of f(x) + g(x) is x(2x+7) if f(x) = 7x + 5 and g(x) = 2x² - 5.

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