Các câu hỏi tương tự
rut gon bieu thuc 2ax^2-a(1+2x^2)-[a-x(x+a)]
rut gon bieu thuc sau
A=5x-2-/2x+1/
Rut gon bieu thuc ( 2x like )
a)28^15 . 3^17
_____________
84^16
b) 3^10 + 6^2
________________
5.3^8 + 20
rut gon bieu thuc 3^6*45^4-3^10*15^3/27^4*25^3+45^6
Cho x/a =y/b =z/c va a b c x y z khac 0 rut gon bieu thuc b = ( a^2x + b^2y + c^2z ) / x^3 +y^3+z^3
voi a<-1, gia tri rut gon cua bieu thuc /a/ +a la............
rut gon bieu thuc sau : 4^2.25^2+32.125/2^3.5^2
rut gon bieu thuc
B=1/2+(1/2)^2+(1/2)^3+...+(1/2)^99
Rut gon bieu thuc ( 2x like )
a)28^15 . 3^17
_____________
84^16
b) 3^10 + 6^2
________________
5.3^8 + 20