Needed to solve :

2x* - 3x - 4 = 0

Any help would be greatly appreciated.

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- May 9th 2012, 09:43 PMFH88Difficulty with a factorisation problem
Needed to solve :

2x* - 3x - 4 = 0

Any help would be greatly appreciated. - May 9th 2012, 10:00 PMamul28Re: Difficulty with a factorisation problem
Roots of a quadratic equation $\displaystyle ax^2+bx+c=0$ are

$\displaystyle \frac {-b-\sqrt{b^2-4ac}} {2a}$ and $\displaystyle \frac {-b+\sqrt{b^2-4ac}} {2a}$, using these you get two roots.

For the given equation the roots are 2.35078 and -0.85078 (the have rounded the roots)

$\displaystyle \therefore$ the factore are $\displaystyle (x-2.35078)\miultiply(x+0.85078)=0$ - May 9th 2012, 10:09 PMprincepsRe: Difficulty with a factorisation problem