Viet cac bieu thuc sau duoi dang tong
a.(\(\dfrac{1}{2}-x\))\(^3\)
b(x+y+z)22 ; (x-y+z)22
c.(x-y-z)22
d.(x+y+z).(x-y-z)
e.(x-y+z).(x+y+z)
f.(x+1)(x22 +2xy+4y22)
g.(x-2y)(x22 +2xy+4y22)
h. (a22-2a+3)(a22 +2a-3)
i.(a22 +2a+3)(a22 -2a-3)
Giup voi nha
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Đọc tiếp
Viet cac bieu thuc sau duoi dang tong
a.(\(\dfrac{1}{2}-x\))\(^3\)
b(x+y+z)22 ; (x-y+z)22
c.(x-y-z)22
d.(x+y+z).(x-y-z)
e.(x-y+z).(x+y+z)
f.(x+1)(x22 +2xy+4y22)
g.(x-2y)(x22 +2xy+4y22)
h. (a22-2a+3)(a22 +2a-3)
i.(a22 +2a+3)(a22 -2a-3)
Giup voi nha
