Question

f(x)= x²+9/x-3
Find f(3)
f(-3).
-3​

Answer 1

Answer:

$f(x) = {x}^{2} + \frac{9}{x} - 3 \\ \\ f(3) = {3}^{2} + \frac{9}{3} - 3 \\ \\ \: \: \: \: = 9 + 3 - 3 \\ \\ f(3) \: \: \: \: \: \: \: = 9 \\ \\ \\ f( - 3) \: \: \: = \: \: { - 3}^{2} + \frac{9}{ - 3} - 3 \\ \\ = 9 - 3 - 3 \\ \\ = 9 - 6 \\ \\ f( - 3) \: \: \: \: \: \: \: \: \: \: \: \:= \: \: \: \: \: \: 3$

Answer 2

Answer:

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