Question

Given f(x) = 4x - 3 and g(x) = 9x + 2, solve for (f + g)(x).

Answer 1

• f(x)=4x-3
• g(x)=9x+2

`\\ \sf\longmapsto (f+g)(x)`

`\\ \sf\longmapsto f(x)+g(x)`

`\\ \sf\longmapsto 4x-3+9x+2`

`\\ \sf\longmapsto 4x+9x-3+2`

`\\ \sf\longmapsto 13x-1`

Answer 2

13x - 1

Explanation:

f(x) + g(x) = 4x - 3 + 9x + 2

f(x) + g(x) = 4x+9x + 2 - 3

f(x) + g(x) = 13x - 1