Given #f(x) = -3x -2 and g(x) = 5x +2#, what is #f(x) + g(x)#?

Question

644 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-10-23T16:38:25

See a solution process below:

#f(x) + g(x) = (-3x - 2) + (5x + 2)#

First, remove all the terms on the right from their parenthesis being careful to manage their signs correctly:

#f(x) + g(x) = -3x - 2 + 5x + 2#

Next, group like tems:

#f(x) + g(x) = 5x - 3x - 2 + 2#

Now, combine like terms:

#f(x) + g(x) = (5 - 3)x + (-2 + 2)#

#f(x) + g(x) = 2x + 0#

#f(x) + g(x) = 2x#