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stiind ca x=3 a+b=9 calc. a)10x-(2a-2b)
b)x+8a+8b
c)xa+xb+10
d)(3a-3b-2x) (2a+2b-3x)​


Stiind Ca X3 Ab9 Calc A10x2a2bbx8a8bcxaxb10d3a3b2x 2a2b3x class=

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