Question

TEST nr.9 rele: a={46+11x[30-8x3+(16-2x7)]-30}:2 b=15+{34-(3x7-17+(4x5+2x8)]:4}​

Answer 1

Răspuns:

a={46+11⋅[30−8⋅3+(16−2⋅7)]−30}:2=

=[46+11⋅(30−24+2)−30}:2=

=(46+11⋅4−30):2=(46+44−30):2=23+22−15

=30

b=15+{34−[3⋅7−17+(4⋅5+2⋅8)]:4}=

=15+{34−[3⋅7−17+(20+16)]:4}=

=15+[34−(3⋅7−17+36):4]=

=15+[34−(4+36):4]=15+(34−40:4)=

=15+(34−10)=15+24=

39

Explicație pas cu pas:

Spor la scris! Sper ca te-am ajutat!

Answer 2

$\bold{a}=\{46+11\cdot[30-8\cdot3+(16-2\cdot7)]-30\}:2= \\ =[46+11\cdot(30-24+2)-30\}:2= \\ =(46+11\cdot4-30):2=(46+44-30):2=23+22-15=\boxed{30}; \\ \bold{b} =15+\{34-[3\cdot7-17+(4\cdot5+2\cdot8)]:4\}= \\ =15+\{34-[3\cdot7-17+(20+16)]:4\} = \\ =15+[34-(3\cdot7-17+36):4]= \\ =15+[34-(4+36):4]=15+(34-40:4)= \\ =15+(34-10)=15+24=\boxed{39}.$