5^3-2.[56-48:(15-7)]

2⁶:5⁴+2³.2²-1²⁰¹⁷

a, 142-[50-(2³.10-2³.5)]
b, 375:{32-[4+(5.3²-42)]}-14
c,{210:[16+3:(6+3.2²)]}-3
d, 500-{5.[409-(2³.3-21)²]-1724}

2⁷:2²+5⁴.2⁴-3.2⁵

a, ̣( 3^5.3^7):3^10+5.2^4-7^3:7

b, 3^2.[(5^2-3):11]-2^4+2.10^3

c,(6^2007-6^2006):6^2006

d, (5^2001-5^2000):5^2000

e,(7^2005+7^2004):7^2004

f, (5^7+7^5).(6^8+8^6).(2^4-4^2)

g,(7^5+7^9).(5^4+5^6).(3^3.3-9^2)

h, [(5^2.2^3-7^2.2):2].6-7.2^5
giúp mik với. cảm ơn

2⁷:2²+5³:2⁴ -3.2⁵