Question

Find the value of p so that the quadratic equation px(5x-6)+9=0 has equal roots

Answer 1

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Answer 2

Since the equations has equal roots then,

b^2-4ac=0

(5px^2-6px+9=0)

(-6p)^2-4×5+9=0

36p^2-180=0

p^2 =5