Draw a graph for the polynomials p(x)=x2+3x-4 and find its zero from graph
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Answer:
x²+3x-4
=x²+4x-x-4
=x(x+4)-1(x+4)
=(x-1)(x+4)
the two zero of the quadratic equation are 1 and -4
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the graph p(x). is given above
clearly,from the graph x = -4,1 are zeros of p(x)
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