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Question

Find the co-ordinates points where the graph of polynomial x2+x+12 intersects the x-axis.

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Solution

Let ,

y=x2+x+12=0

It cut x-axis then, at x-axis y=0

x2+x+12=0

x=b±b24ac2a

x=(1)±(1)2411221

x=1±472

Hence required coordinates.

(x,y)=(1+472, 0)

(x,y)=(1472, 0)



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