Question

Amplificați raportul algebric:
$\frac{x}{y} cu \: x$
$\frac{y}{x \: - \: 1} cu \: y$
$\frac{ab}{2 \: - \: a} cu \: b$
$\frac{x \: - \: 1}{x \: + \: 1} \: cu \: x \: - \: 1$
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Answer 1

Răspuns:

$\frac{x}{y} amplificat .cu. x= \frac{x^{2} }{y*x} \\\frac{y}{x-1} cu. y= \frac{y^{2} }{xy-y} \\\frac{ab}{2-a} cu.b= \frac{ab^{2} }{2b-ab} \\\frac{x-1}{x+1} cu.x-1= \frac{x^{2} -2x+1}{x^{2} -x+x-1} =\frac{x^{2} -2x+1}{x^{2} -1}$