Ta có: \(6x^4-13x^2+6\)
\(=6x^4-9x^2-4x^2+6\)
\(=3x^2\left(2x^2-3\right)-2\left(2x^2-3\right)\)
\(=\left(2x^2-3\right)\left(3x^2-2\right)\)
\(6x^4-13x^2+6=6x^4-4x^2-9x^2+6\)
\(=2x^2\left(3x^2-2\right)-3\left(3x^2-2\right)\)
\(=\left(2x^2-3\right)\left(3x^2-2\right)\)
Ta có:\(6x^4-13x^2+6\)
\(=6x^4-9x^2-4x^2+6\)
\(=3x^2\left(2x^2-3\right)-2\left(2x^2-3\right)\)
\(=\left(2x^2-3\right)\left(3x^2-2\right)\)