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rezolvati calculul : √50-4√18+2√8-3√2
efectuand calculul : (x-3)²+(x-2)(x+2) se obtine :
Multumesc mult


Răspuns :

√50-4√18+2√8-3√2 =√25*2-4√9*2+2√2³-3√2 = 5√2- 12√2+4√2-3√2=
=  - 6√2

(x-3)²+(x-2)(x+2) = x² - 6x+9 +x² -4= 2x²-6x+5

5radical din2-6radical din2+4radical din2-3radicaldin2=0

xpatrat -6x+9+xpatrat-4=2xpatrat-6x+5