Quadratic Qn ,Help Please :D

[misscraps]

The roots of quadratic equation
xsquare -(2m+4)x + (msquare+3m+2) =0
are non-zero & one root is twice the other
calcuate the value of m .

 

[Deleted member 4993]

The roots of quadratic equation
xsquare -(2m+4)x + (msquare+3m+2) =0
are non-zero & one root is twice the other
calcuate the value of m .

For a quadratic equation of the form:

\(\displaystyle A\cdot x^2 \, + \, B\cdot x \, + \, C \, = \, 0\)

The roots are:

\(\displaystyle x_{1,2} \, = \, \frac{- \, B \, \pm \sqrt{B^2 - 4\cdot A \cdot C}}{2\cdot A}\)

Please show us your work and exactly where you are stuck , so that we know where to begin to help you.