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-1+2•[-3+4•(-5+6)=cum se face​

Răspuns :

[tex] - 1 + 2 \times ( - 3 + 4 \times ( - 5 + 6) = \\ - 1 + 2 \times ( - 3 + 4 + 1) = \\ - 1 + 2 \times (1 + 1) = \\ - 1 + 2 \times 2 = \\ - 1 + 4 = \\ 3[/tex]