Answer:
Explanation:
subsitute x with value given in bracket
a) f(1) = (1)² + 1 = 2
b) f(-3) = (-3)² + 1 = 10
c) f(b³) = (b³)² + 1 = b^6 + 1
d) f(x-1) = (x-1) +1 = x
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