Question

Find the condition under which the quadratic equation 9x²-3(a+b)x +ab has real roots

Answer 1

Answer:

hope this answer will help you

Answer 2

Answer:

here is the answer frnd

if the equation has real roots then

D>= 0

then

b^2-4ac>=0

9(a+b)^2-4×9×ab >=0

then

9a^2+9b^2-18ab>=0

(3a-3b)^2>=0

then

a>=b

ok

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