Rut gon bieu thuc
(x+1)2 - (x-1)2 - 3. (x+1). (x-1)
rut gon bieu thuc 2ax^2-a(1+2x^2)-[a-x(x+a)]
Bai 1: Rut gon bieu thuc sau
B=(2/3)^3×(-3/4)^4×(-1)^5/(2/5)^2 × (-5/12)^3
Bai 2: Tim ia tri bieu thuc sau
M= 512- 512/2- 512/2^2- 512/2^2 - 512/2^3...512/2^10
rut gon bieu thuc sau
A=5x-2-/2x+1/
Rut gon bieu thuc
B= 3.(-1)-2.\(|\)x+3\(|\)
Moi nguoi giup minh vs:
Rut gon bieu thuc:
a, 5^n +5^(n+2)
b,2/3. 3^(n-1)
Rut gon bieu thuc B=3/2-(3/2)^2+(3/2)^3-.........(3/2)^2014
rut gon bieu thuc:
a,\(\dfrac{\sqrt{3^2}+\sqrt{39^2}}{\sqrt{7^2}+\sqrt{91^2}}1\)
b, \(\sqrt{\left(2,5-0,7\right)^2}\)
rut gon
A=1-6+62-63+...-699+6100
