Math, asked by gondpratik2007, 3 months ago

Find the value of polynomial 2x+r when xa-3​

Answers

Answered by kaustubhbidaye
0

Answer:

Given p(x)=2x

2

+x+k

x=3

Put x=3

⇒p(3)=2(3)

2

+(3)+k

⇒2(3)

2

+(3)+k=0

⇒2.9+3+k=0

⇒18+3+k=0

⇒21+k=0

⇒k=−21

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