Question
Thu April 03, 2014 By: Sanjay Padmanabhan

if x=2 is a zero of the polynomial xcube-3xsquare+2x

Expert Reply
Thu April 03, 2014
Since x = 2 is a zero of the polynomial
 
Therefore p(2) = 0
 
Let p(x) = x to the power of 3 space end exponent minus space 3 x squared plus space 2 x space
Therefore p(2) = 2 cubed minus space 3 x space 2 to the power of 2 space end exponent plus space 2 x 2= 0
                          = 8 - 12 + 4
                          = 0
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