Question

The quadratic equation abx2 + acx + b(bx + c) = 0<br /><br />has non-zero equal and rational roots. The values of<br /><br />a and c respectively cannot be equal to (ab  0)

Answer 1

Start with factorizing the given equation.  After you have obtained the factors convert them into roots.  Then you will have roots. After that it is given in the question that roots are equal.  Put the roots equal. After putting them equal cross multiply. You will obtain a equation b2 = ac after that put the values