Question

If x-3 is a factor of the polynomial 2x +7x+k, find the value of k.​

Answer 1

Answer:

k= -27

I hope you will understand

Answer 2

Answer:

(2x−3) is a factor of p(x)=2x3−9x2+x+K,

If (2x−3)=0,x=23

If (2x−3) is a factor of p(x) then p(23)=0

p(x)=2x3−9x2+x+K,

⇒p(23)=2(23)−9(23)+23+K=0

⇒2(827)−9(49)+23+K=0

⇒(427−481+23

hope it is help full to you.

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