Last edited by srirahulan; May 16th 2012 at 10:17 PM.

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use the quadratic formula for the first one and solve: find the 2 solution and equate......

I can't understand.

Suppose that has equal roots, what will this mean.... First Solve the equation using the quadratic equation and tell me what you get....

For roots to be equal, discriminant = 0, right? So: 36 a^2 b^2 = 4 a^2(ac + 8 b^2); simplifies to b^2 = ac Now continue with other equation...

Last edited by Wilmer; May 17th 2012 at 05:26 AM.

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