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Question
If f(x) = (x − a)2 (x − b)2, find f(a + b).
Solution
Given:
f (x) = (x – a)2(x – b)2
Thus,
f (a + b) = (a + b – a)2(a + b – b)2
= b2a2
Hence, f (a + b) = a2b2 .
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