Question

Fox x=-1 find the value of the . polynomial p(x) = x+3.​

Answer 1

Answer:

a−b,a,a+b are zeroes of x3−3x2+x+1

⇒a−b+a+a+b= sum of zeroes = 3

⇒3a=3

⇒a=1

(a−b)(a)(a+b)= product of zeroes =−1

⇒(1−b)(1+b)=−1

⇒1−b2=−1

⇒b2=2

⇒b=±2

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Answer 2

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