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Wednesday, April 14, 2021

Te thjeshtohet shprehja

 Të thjeshtohet thyesa \displaystyle \frac{2xb-2b}{1-{{x}^{2}}}

 

Zgjidhje

 

Përdorim faktorizimet:

\displaystyle \frac{2xb-2b}{1-{{x}^{2}}}=\frac{2b\left( x-1 \right)}{\left( 1-x \right)\left( 1+x \right)}

                   \displaystyle =\frac{2b\left( x-1 \right)}{-1\left( x-1 \right)\left( 1+x \right)}

                  \displaystyle =\frac{2b}{-1\left( 1+x \right)}=-\frac{2b}{x+1}




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