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a fost răspuns

STIIND CA 12X-5Y/3X =2/3 CALCULATI X/Y SI X PATRAT+XY / YPATRAT

Răspuns :

Renatemambouko
(12x-5y)/3x=2/3
36x-15y=6x
30x=15y
2x=y
x/y=1/2
(x²+xy)/y²=(x/y)²+x/y=(1/2)²+1/2=1/4+1/2=1/4+2/4=3/4

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