Question

For f(x) = 4x + 1 and g(x) = x*2 - 5, find (f + g) (x).

Answer 1

Answer is:

• x² + 4x - 4 (Option B)

Explanation:

Here,

• f(x) = 4x + 1
• g(x) = x²- 5

We have to find (f + g) (x)

(f + g) (x) is similar to f(x) + g(x)

Further solving for (f + g) (x)

Put value of f(x) and g(x) here

• 4x + 1 + x² - 5

Combining all like terms.

• x² + 4x - 5 + 1
• x² + 4x - 4

Similarly, (f + g) (x) = x² + 4x - 4 (Answer)