Question

F(x) = 3x3 - 4x2 + 5 and g(x) = x2 + 2x - 6 . what’s f(x) + g(x)??

Answer 1

f(x) = 3x³ - 4x² + 5

g(x) = x² + 2x - 6

f(x) + g(x) = 3x³ - 4x² + 5 + x² + 2x - 6

f(x) + g(x) = 3x³ - 3x² + 2x - 1

Answer 2

To find this answer, we are going to combine like terms, meaning that we are going to combine terms that have the same variables with the same exponents (for example,
`3x^2` and
`8x^2` equals
`11x^2`).

`f(x) + g(x)`

`(3x^3 - 4x^2 + 5) + (x^2 + 2x - 6)`

`\boxed{f(x) + g(x) = 3x^3 - 3x^2 + 2x - 1}`