The answer I got is x^3 + 14x - 9x
(f+g-k)(x) means to add the equations f(x) and g(x) then subtract k(x)
2x^2 + 3x + 4x - 9 = 2x^2 +7x -9
2x^2 + 7x - 9 - x^2 -7x = x^2 -9
The answer is : x^2 - 9
Answer:
can u please type out the photo is too dark to see the questions
Step-by-step explanation:
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Josiah Rowell
x = 7
