Question

Demonstrați identitatea:
$x^{2} - x + \frac{1}{4} = (x - \frac{1}{2} )^{2}$
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Answer 1

Răspuns:

$x ^{2} - x + \frac{1}{4} = x^{2} - 2x \times \frac{1}{2} + ( \frac{1}{2} ) ^{2}$

${x}^{2} - x + \frac{1}{4} = {x}^{2} - x + \frac{1}{4}$

Sper ca te-am ajutat!