\(=\left(a+b\right)^2+2\left(a+b\right)c+c^2+\left(a+b\right)^2-2\left(a+b\right)c+c^2-4c^2\)
\(=2\left(a+b\right)^2-2c^2=2\left[\left(a+b\right)^2-c^2\right]=2\left(a+b+c\right)\left(a+b-c\right)\)
phan tich da thuc thanh nhan tu
\(\left(\text{a}+b+c\right)^3-\text{a}^3-b^3-c^3\)
phan tich da thuc thanh nhan tu
ab(a-b)+bc(b-c) +ca(c-a)
\(x^4-3x^3y+3x^2y^2-z^3-xy^3\)
\(\left(a-b\right)^3+\left(b-c\right)^3+\left(c-a\right)^3\)
\(\left(2x+1\right)^2+2\left(2x+1\right)\)
phan tich da thuc thanh nhan tu
phan tich da thuc thanh nhan tu
\(9\left(x+1\right)^2-\left(3x-2\right)^2\)
phan tích da thuc thanh nhan tu
\(\text{a}b\left(\text{a}-b\right)+bc\left(b-c\right)+c\text{a}\left(c-\text{a}\right)\)
PHAN TICH DA THUC THANH NHAN TU
\(\left(x^2+6x\right).\left(x^2+14x+40\right)+128\)\
giup minh di!
Phan tich da thuc thanh nhan tu
\(\left(8x+3\right)^2-25x^2\)
Phan tich da thuc thanh nhan tu
\(\left(xy+4\right)^2-4\left(x+y\right)^2\)
\(x^4-4x^3+8x^2-16x+16\)
\(\left(2x-10\right).\left(x+10\right).\left(x+\sqrt{3}\right)=0\)
(Bai phan tich da thuc thanh nhan tu)
