Question

Resolva as expressões

5x9-2x10=

5*(12+2x4)=

(9-2x3)*(3+2x5)=

2*[(5-2)*(3+2x7)]-2=

(3x8+6)-{20[10-(4x15-22)]}

2*[(20-5)+9*(30+6-21)

5x8:4=

5x7-15:3 8x9-6x7=

(60-4x7):(18:6-1)=

[20:(6x8-8)]:[7x4-8):(3+2)]=

45-{4*[(9x12-14x7):(15-5x2)]}

[25-(18:3)]*{5+[18-(4x5-4)]}=

{38+[(143:11+7)-5x2]}:6= 3²-5=

Answer 1

esse x significa multiplicação?