Các câu hỏi tương tự
voi a<-1, gia tri rut gon cua bieu thuc /a/ +a la............
rut gon bieu thuc 2ax^2-a(1+2x^2)-[a-x(x+a)]
rut gon bieu thuc \(\left(a+b+c\right)^3-\left(b+c-a\right)^3-\left(a+c-b\right)^3-\left(a+b-c\right)^3\)
1 rut gon bieu thuc ; A=5Ix+1I-3.[4-2x]
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
rut gon: a)999/2610 b)374/506
c)3600-75/8400-175 d)9^14.25^5.8^7/18^12.625^3.24^3
rut gon bieu thuc sau
A=5x-2-/2x+1/
A=1(x+3) - | 3x+2 |
a)rut gon A
b)tim x de A=5
Mik can rat gap giup mik di mik tick cho :(
Rut gon A= 1+5+52+...+52011