How do I graph (f+g)(x)? f(x) = 2x^2 + 5x - 6 g(x) = x^2 -

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Hello, Am I able to find f(-1) and g(-1) seperately, then add the two points together? So it's (f+g)(x). Instead of adding the two functions and making a single quadratic function. Could I insert (-1) into (f)x and then (-1) into g(x) so that I find a point for both of them seperately, then add the two points together?

Customer:replied 1 year ago.

I.e.) If i put it into a table where my headers are X l f(x) l g(x) l (f+g)(x). So I plug in -1 to X, then find f(x) and g(x). Which should then equal (f+g)(x) if I add them together?