Using graph find zeros y=x^2-3x-4
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Answer:
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
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