=a^3+b^3+c^3+a^3-b^3-c^3-(6ab+6ac)^2
=2a^3-6ab^2-6ac^2
=a^3+b^3+c^3+a^3-b^3-c^3-(6ab+6ac)^2
=2a^3-6ab^2-6ac^2
Rút gọn:
A=\(\left(a+b+c\right)^3+\left(a-b-c\right)^3-6a\left(b+c\right)^2\)
Rút gọn:
A=\(\left(a+b+c\right)^3+\left(a-b-c\right)^3-6a\left(b+c\right)^2\)
Rút gọn:
A=\(\left(a+b+c\right)^3+\left(a-b-c\right)^3-6a\left(b+c\right)^2\)
Rút gọn:
A=\(\left(a+b+c\right)^3+\left(a-b-c\right)^3-6a\left(b+c\right)^2\)
Rút gọn:
A=\(\left(a+b+c\right)^3+\left(a-b-c\right)^3-6a\left(b+c\right)^2\)
Rút gọn:
A=\(\left(a+b+c\right)^3+\left(a-b-c\right)^3-6a\left(b+c\right)^2\)
Rút gọn:
A=\(\left(a+b+c\right)^3+\left(a-b-c\right)^3-6a\left(b+c\right)^2\)
Rút gọn:
A= ( a+b+c) \(^3+\left(a-b-c\right)^3-6a\left(b+c\right)^2\)
rút gọn
\(\left(a+b+c\right)^3-\left(b+c-a\right)^3-\left(a+c-b\right)^3-\left(a+b-c\right)^3\)