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Factor the trinomial $x^2-4x-5$ finding two numbers that multiply to form $-5$ and added form $-4$
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$\begin{matrix}\left(1\right)\left(-5\right)=-5\\ \left(1\right)+\left(-5\right)=-4\end{matrix}$
Learn how to solve quadratic equations problems step by step online. Solve the quadratic equation x^2-4x+-5=0. Factor the trinomial x^2-4x-5 finding two numbers that multiply to form -5 and added form -4. Thus. Break the equation in 2 factors and set each equal to zero, to obtain. Solve the equation (1).