Răspunsuri

2014-02-16T11:51:01+02:00
A)  [(3√5)^2+3√5-2]^2-[(3√5)^2+1]+3(3√5-3)=
43^2+258√5+45-46+9√5-9=
1849+249√5-10=1839+249√5

B)  = .........= 2x^3-6x^2+2x+81=

=54*5-6*9*5+6√5+81=.......=6√5+81