Find the zeros of the quadratic polynomial PX = x 2- 3x-10 and verify the relationship between zeros and the coefficient
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x^2-3x-10=x^2+2x-5x-10
=x(x+2)-5(x+2)
=(x-5)(x+2)
x-5=0,x+2=0
x=5,x=-2
=x(x+2)-5(x+2)
=(x-5)(x+2)
x-5=0,x+2=0
x=5,x=-2
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