Question

if arithmetic means of two numbers a and bis 8 and ab = 9 find a quadratic equation whose roots are a and b​

Answer 1

Answer:

x2-18x+9

Step-by-step explanation:

GIVEN a+b /2=9 (mean)

so a+b=18 -1

then ab=9

so the equation becomes k[x2-(sum of roots)x+(product of roots )]

=x2-18x+9

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