Draw the graph of p(x)=x2+3x−4 and find zeroes. Verify the zeroes of the polynomials
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Solution
The graph of p(x) is given above. Clearly, from the graph x=−4,1 are zeros of p(x). Verification:- p(−4)=(−4)2+3×−4−4=16−12−4=0 p(1)=(1)2+3×1−4=1+3−4=0