2n squared= -10n - 5
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Originally Posted by lovely08 2n squared= -10n - 5 $\displaystyle 2n^2+10n+5=0$ $\displaystyle n=\frac{-10 \pm \sqrt{100-4(5)2}}{4}$ $\displaystyle n=\frac{-10 \pm \sqrt{60}}{4}$ $\displaystyle n=\frac{-10 \pm 2\sqrt{15}}{4}$
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