Question

(b) If p(x) = x2 -2/3x+1, then p(223) is equal to
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Answer 1

Rewrite the polynomial x

2 −1=0 as:x 2 −1=0

⇒x 2 −1 2 =0

⇒(x−1)(x+1)=0(∵a 2 −b 2)

=(a−b)(a+b))

⇒(x−1)=0,(x+1)=0

⇒x=1,x=−1

Hence, the zeroes of the polynomial x 2 −1 are 1,−1.

Answer 2

Answer:

the answer for the given question is49574