Answer:
2x² + 11
Explanation:
f(x) - g(x)
(3x² + 2) - (x² - 9)
Rearrange.
3x² - x² + 2 + 9
Add or subtract like terms.
2x^2 +11
f(x) = 3x^2 +2
g(x) = x^2 -9
f(x) - g(x) = 3x^2 +2 - (x^2 -9)
Distribute the minus sign
= 3x^2 +2 -x^2 +9
Combine like terms
= 2x^2 +11
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