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Efectuati:
a)[tex][ \frac{x(x+y)}{x-y} ]^2[/tex]
b)[tex]( \frac{x^2a}{y^5b^3} )^3[/tex]
c)[tex][ \frac{2(x-1)}{3a+b} ]^2[/tex]
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Răspuns :

GeorgianaV
a) [tex] \frac{ x^{2} (x+y) ^{2} }{(x-y) ^{2} } [/tex]

b) [tex] \frac{ x^{6} a^{3} }{y ^{15}b ^{9} } [/tex]

c)[tex] \frac{4(x-1) ^{2} }{9a ^{2} + 6ab + b ^{2} } [/tex]

:)