Question

Se dau numerele: a=2+8×9-4×7:2+9×0
B=22+3×3 ×3 - 4:4-55:5+8
Calculează :2×(a+b)
E urgent va rog..

Answer 1

a=2+72-28:2+0=2+72-14=60
b=22+27-1-11+8=45
2×(60+45)=2×105=210

Answer 2

[tex]a=2+8*9-4*7:2+9*0\\ a=2+72-28:2+0\\ a=2+72-14+0\\ a=74-14+0\\ a=60[/tex][tex]b= 22+3*3 *3 - 4:4-55:5+8\\ b=22+27-1-11+8\\ b=49-21+8\\ b=28+8\\ b=36.\\\\ 2(a+b)\ \textless \ =\ \textgreater \ 2*(60+36)=192 [/tex]