if (x-3) is a factor of the polynomial (2×x×x+x+k),find k
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Hey there!!
We have ,
p(x) = 2x^2+x+k
Given that , x-3 is its factor ,
therefore x =3
p(x) =0
=> 2 (3)^2 +3 + k =0
=> 2 ×9 +3 +k. = 0
=> 18 +3 + k. =0
=> k =- 21
Hope this helps u !!!
We have ,
p(x) = 2x^2+x+k
Given that , x-3 is its factor ,
therefore x =3
p(x) =0
=> 2 (3)^2 +3 + k =0
=> 2 ×9 +3 +k. = 0
=> 18 +3 + k. =0
=> k =- 21
Hope this helps u !!!
kshitij27:
thanks
:)
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