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12-27n^2=0
a = -27; b = 0; c = +12;
Δ = b2-4ac
Δ = 02-4·(-27)·12
Δ = 1296
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:$n_{1}=\frac{-b-\sqrt{\Delta}}{2a}$$n_{2}=\frac{-b+\sqrt{\Delta}}{2a}$$\sqrt{\Delta}=\sqrt{1296}=36$$n_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-36}{2*-27}=\frac{-36}{-54} =2/3 $$n_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+36}{2*-27}=\frac{36}{-54} =-2/3 $
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