Question

-2×acolada+7-5×paranteza dreapta-3×(+2-5+6-4)×(-4+5-3)+8paranteza dreapta acolada

Answer 1

Răspuns:

-2×{7-5×[-3×(2-5+6-4)×(-4+5-3)+8}=

-2×{7-5×[-3×(-3+6-4)×(1-3)+8]}=

-2×{7-5×[-3×(-3-4)×(-2)+8]}=

-2×{7-5×[-3×(-7)×(-2)+8]}=

-2×{7-5×[21×(-2)+8]}=

-2×[7-5×(-42+8)]=

-2×[7-5×(-34)]=

-2×(7+160)=

-2×167= -334