RRB NTPC 30 March 2016 - Shift 3

Question 1

Find the factors of $$(x^2 - x - 132)$$ 

Solution

$$(x^2 - x - 132)$$

$$x^{2\ }-12x+11x-132=0$$

$$x\left(x-12\right)+11\left(x-12\right)=0$$

$$\left(x-12\right)\ \left(x+11\right)\ =\ 0$$ .

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