Các câu hỏi tương tự
{ x2 [62 -(82 -9.7 )3 -7.5 ] 3 -5.3 }3 =1
{ x2 - [ 62 - ( 82 -9.7 )3 -7.5 ]3 -5.3 }3 =1
2Tìm X:
a.(19x+2.5^2):14=(13-8)^2-4^2
b.2.3^x=10.3^12+8.27^4
c.{x^2-[6^2-(8^2-9.7)^3-7.5]^3-5.3}^3=1
d.60-3(x-2)=51
e.4x-20=2^5:2^2
{x2 - [62 -(82 -7.9 )3 - 7.5 ]3 -5.3 } 3 =1
3^(10)+6^(2)/5.3^(8)+20
3^(10)+6^(2)/5.3^(8)+20
(-12.2/7+8/9:3 1/2-2/7.5/18).3 1/2
Bài 1: Tìm x biết: a, |2x+5|-|x+3|=0
Bài 2: Rút gọn:
a,\(\frac{3^6+45^4-15^3.4^5}{27^4.25^3+45^6}\)
b,\(\frac{\left(\frac{2}{5}\right)^7.5^7+\left(\frac{16}{3}\right)^3:\left(\frac{4}{9}\right)^3}{2^7.5^2+512}\)
tính (2/5)^7.5^7+(9/4)^3:(3/6)^13/2^7.5^2+5^12