a) \(2x^3-4x^2+2x\)
\(=2x\left(x^2-2x+1\right)\)
\(=2x\left(x-1\right)^2\)
b) \(x^3+2x^2+4x\)
\(=x\left(x^2+2x+4\right)\)
c) \(2x^3+8x^2+8x\)
\(=2x\left(x^2+4x+4\right)\)
\(=2x\left(x+2\right)^2\)
d) \(36x^2-a^2+10a-25\)
\(=36x^2-\left(a^2-10a+25\right)\)
\(=\left(6x\right)^2-\left(a-5\right)^2\)
\(=\left(6x-a+5\right)\left(6x+a-5\right)\)
p/s: lần sau gõ đề cẩn thận hơn nhé.