Question

a)   15:{390:[ 5³.4 – (5. 2⁵+35.6)]}

thank

 

Answer 1

\(=15:\left\{390:\left[125\cdot4-5\cdot32-210\right]\right\}\)

\(=15:\left\{390:130\right\}=15:3=5\)

Answer 2

=> 15:{390:[125.4-(5.32+210)]}
=> 15:{390:[500-(160+210)]}
=> 15:{390:[500-370]}
=> 15:{390:130}
=> 15:3=5

Answer 3

15 : {390 : [125.4 - (5.32 + 210)]}
15 : {390 : [500 - (160 + 210)]}
15 : {390 : [500 - 370]}
15 : {390 : 130}
15 : 3 = 5