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Exponential Representation for Irrational Numbers

Solve : 2x2+...

Question

Solve :
$2 x^{2} + 10 x + 8 = 0$

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Solution

$2 x^{2} + 10 x + 8 = 0$
$x^{2} + 5 x + 4 = 0$
$x^{2} + x + 4 x + 4 = 0$
$x (x + 1) + 4 (x + 1) = 0$
$(x + 1) (x + 4) = 0$
$x = - 1, - 4$

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