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_//(2*2) - 4x - 7// * _//2// = 0

4* 12x - 7 * 122/100 = 0

28*12x * ((28*12)/122) = 0

(23/10 * x) * ((23/10 * x)/122) = 0

23/10 *x = 0 / ((23/10 *x)122)

23/10 *x = 0

23/x = 10

x = 2.3

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Q: Square root of 2x2 - 4x - 7 suare root 2 equals 0?
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