thực hiện phép tính
3^2.22-3^3.19 2^4.5-[131-(13-4)^2]
100:{250: [450-(4.5^3-2^2.25)]}
thực hiện phép tính 3^2.22-3^3.19 2^4.5-[131-(13-4)^2] 100:{250: [450-(4.5^3-2^2.25)]}
By Parker
By Parker
thực hiện phép tính
3^2.22-3^3.19 2^4.5-[131-(13-4)^2]
100:{250: [450-(4.5^3-2^2.25)]}
Đáp án:
Giải thích các bước giải:
a)3^2.22-3^3.19= 9.22-27.19=198- 513= -315
b) 2^4.5-[131-(13-4)^2]=2^4.5-[131-9^2] =2^4.5-[131-81]=16.5-50=80-50=30
c)100:{250: [450-(4.5^3-2^2.25)]}=100:{250: [450-(4.125-4.25)]}=100:{250: [450-(500-100)]}=100:{250: [450-400]}=100:{250: 50}=100:5=20
a). 3^2.22-3^3.19
= 9.22-27.19
=198- 513
= -315
b). 2^4.5-[131-(13-4)^2]
=2^4.5-[131-9^2]
=2^4.5-[131-81]
=16.5-50
=80-50
=30
c). 100:{250: [450-(4.5^3-2^2.25)]}
=100:{250: [450-(4.125-4.25)]}
=100:{250: [450-(500-100)]}
=100:{250: [450-400]}
=100:{250: 50}
=100:5
=20