is defined by
f(x) = x2 ? 3x + 2 find f(f(x)).
Answer:
Given f(x) = x2
?3x + 2
= (x2
? 3x + 2)2 ? 3 (x2 ? 3x + 2) + 2
= x4
+ 9x2 + 4 ? 6x2 ? 12x + 4z2 ? 3x2 +
9x ? 6 + 2.
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