1. Using factor theorem, show that :
(i) (x - 3) is a factor of (x3 + x2 - 17x + 15).
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SOLUTION :
Let's understand the concept :
- Here , concept of factor theorem is used .
We need to take the whole polynomial as f (x) and if f (x)= 0 then (x-3) is a factor .
Answer:
- x-3=0
- x = 0+3
- x=3
- Substitute the values :
- Hence , X-3 is a factor of the given polynomial.
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