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a fost răspuns

a) 5x[3x(17+3x5)-4x8]
b) {81-36x[15x(3-2)-13]}

Răspuns :

Renatemambouko
a) 5x[3x(17+3x5)-4x8]=
= 5x[3x(17+15)-32]=
= 5x(3x32-32)=
= 5x(96-32)=
= 5x64=
=320

b) {81-36x[15x(3-2)-13]}=
= 81-36x(15x1-13)=
= 81-36x(15-13)=
= 81-36x2=
= 81-72=
=9

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