Question

If f(x) = -4x2 - 6x- 1 and g(x) = -x2 - 5x + 3, find (f+ g)(x).

O A. (f+ g)(x) = 5x2 + 11x+ 4
O B. (f+ g)(x) = - 5x2 - 11x + 2
O C. (f+g)(x) = -5x2 - x-4
O D. (f+9)(x) = 3x2 + x+4

Answer 1

Answer: B

Step-by-step explanation:

• -4x2 + (-x2)= (-6x2)
• (-6x) + ( -5x)= (-11x)
• (-1) + 3= 2
• -6x2-11x+2

Answer 2

Explanation:

f(x) = -4x^2 - 6x - 1 ........ g(x) = -x^2 - 5x + 3

find (f + g)(x)

-4x^2 - 6x - 1 + (-x^2 - 5x + 3) =

-4x^2 - 6x - 1 - x^2 - 5x + 3 =

-5x^2 - 11x + 2 <====