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in Class IX Maths by Mature (260 points)
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by Mature (260 points)
 
Best answer
x-2=0

x=2

g(x)=px²+qx+r

g(2)=p(2)²+q(2)+r=4p+2q+r=0

x-1/2=0

x=1/2

g(1/2)=p(1/2)²+q(1/2)+r=p/4+q/2+r=0

            =4(p/4+q/2+r)=0x4

            =p+2q+4r=0

p+2q+4r=4p+2q+r

4r-r=4p-p

3r=3p

r=0

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