Question

f(x) = 6x2 + 2x − 7 and g(x) = 4x − 3.
a. (f+g)(x)

b. (f-g)(x)

Answer 1

Answer:

  a) (f+g)(x) = 6x^2 +6x -10

  b) (f-g)(x) = 6x^2 -2x -4

Step-by-step explanation:

a. (f+g)(x) = f(x) +g(x) = (6x^2 +2x -7) +(4x -3)

  (f+g)(x) = 6x^2 +6x -10

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b. (f-g)(x) = f(x) -g(x) = (6x^2 +2x -7) -(4x -3)

  (f-g)(x) = 6x^2 +2x -7 -4x +3

  (f-g)(x) = 6x^2 -2x -4