The value of k if (x-1) is a factor of polynomial 3x+2x-k is
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0
If X - 1 is a factor ,
Then X = 1 is it's zeros ..
P ( 1 ) = 3 ( 1 ) + 2 (1) - k
= 0 = 3 + 2 - k
- 5 = -k
K = 5 Ans.
Then X = 1 is it's zeros ..
P ( 1 ) = 3 ( 1 ) + 2 (1) - k
= 0 = 3 + 2 - k
- 5 = -k
K = 5 Ans.
Answered by
16
( X - 1 ) is a factor the given polynomial 3X² + 2X - K.
( X - 1 ) = 0
X = 1
P ( X ) = 3X² + 2X - K
P (1) = 3 × (1)² + 2 × 1 - K
=> 3 × 1 + 2 × 1 - K
=> 3 + 2 - K
=> 5 - K = 0
=> K = 5
( X - 1 ) = 0
X = 1
P ( X ) = 3X² + 2X - K
P (1) = 3 × (1)² + 2 × 1 - K
=> 3 × 1 + 2 × 1 - K
=> 3 + 2 - K
=> 5 - K = 0
=> K = 5
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