a)10n+1-6*10n=10n*10-6*10n=10n(10-6)=10n*4
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a)10n+1-6*10n=10n*10-6*10n=10n(10-6)=10n*4
rut gon bieu thuc 3^6*45^4-3^10*15^3/27^4*25^3+45^6
1 rut gon bieu thuc ; A=5Ix+1I-3.[4-2x]
Rut gon bieu thuc(2014.2015-1)/(2013.2015+2014) duoc ket qua la:
Rut gon bieu thuc:
m=\(\frac{2^5.15^3}{6^3.10^2}\)
voi a<-1, gia tri rut gon cua bieu thuc /a/ +a la............
rut gon bieu thuc sau
A=5x-2-/2x+1/
rut gon bieu thuc 2ax^2-a(1+2x^2)-[a-x(x+a)]
rut gon bieu thuc
B=1/2+(1/2)^2+(1/2)^3+...+(1/2)^99
rut gon bieu thuc sau : 4^2.25^2+32.125/2^3.5^2