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[(-11+8)^3+(-5)^2]^3+20=
Va rog ajutati.ma!!!
^-la puterea


Răspuns :

  
[tex]\displaystyle\\ ~\left[(-11+8)^3+(-5)^2\right]^3+20=\\\\ =\left[(-3)^3+(-5)^2\right]^3+20=\\\\ =\left[-27+25 \right]^3+20=\\\\ = [-2]^3 + 20 = -8 + 20 = \boxed{12} [/tex]