Find the value of k if ( x-3) is a factor of 2x*power2-kx+1.
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Let P(x)= 2x^2-kx+1
By factor theorem
(Factor theorem states the if P(x) is a polynomial and x-a is factor of P(x) then P(a) will be zero.)
Therefore, P(3)= 0.
=> 2×(3)^2-k×3+1=0
=> 18-3k+1= 0
=> 3k= 19
=> k= 19/3.
I hope it will help you.
By factor theorem
(Factor theorem states the if P(x) is a polynomial and x-a is factor of P(x) then P(a) will be zero.)
Therefore, P(3)= 0.
=> 2×(3)^2-k×3+1=0
=> 18-3k+1= 0
=> 3k= 19
=> k= 19/3.
I hope it will help you.
trishats0807:
Can u solve it further
what is left now?
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