Question

amplificati raportul algebric
a)$\frac{x}{y} cu x$
b)$\frac{y}{x-1} cu y$
c)$\frac{ab}{2+a} cu b$
d)$\frac{x-1}{x+1} cu x-1$

Answer 1

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Answer 2

a)$= \frac{ x^{2} }{xy}$
b)$= \frac{ y^{2} }{y(x-1)}= \frac{ y^{2} }{xy-y}$
c)$\frac{a b^{2} }{b(2+a)} = \frac{a b^{2} }{2b+ab}$
d)$\frac{(x-1 )^{2} }{(x+1)(x-1)}= \frac{(x-1)^{2} }{ x^{2} -1}= \frac{ x^{2} -2x+1}{ x^{2} -1}$