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Vreau rezolvarea corecta.Dau coroana!

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Răspuns :

Pisipisipisi123
a)4x-5y
b)-xy+2x^2y
c)10x^2
d)2,(2)x^2+1,(1)y^2
e)1,5x^2+0,55xy
f)1\6*x^2y+1\4*xy^2-2\3*x^2y- 2\4*xy^2= -1\6* x^2y-3\4*xy^2
Orhalumi
2.
a.4x-5y
b.-xy+2x^2y
c. 10x^2
d.(23-2)/9*x^2-(45-4)/9*x^2+(41-4)/9*y^2-(32-3)/9*y^2=
(21/9-39/9)*x^2+(37/9-29/9)*y^2=
-18/9x^2+8/9y^2=-2x^2+8/9y^2

e. 0.55xy-1.2*x^2
f.
(1/6-2/6)x^2y+(1/4-2/4)xy^2=
-1/6x^2y-1/4xy^2

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