x2 - 3x + 2
= x2 - x - 2x + 2
= x.(x - 1) - 2.(x - 1)
= (x - 1).(x - 2)
Ủng hộ mk nha ^-^
\(x^2-3x+2\)
\(=x^2-x-2x+2\)
\(=x\left(x-1\right)-2\left(x-1\right)\)
\(=\left(x-1\right)\left(x-2\right)\)
x^2-3x+2
=x^2-x-2x+2
=x(x-1)-2(x-1)
=(x-2)(x-1)
TA CÓ:
\(x^2-3x+2\)
\(=x^2-2x-\left(x-2\right)\)
\(=x\left(x-2\right)-\left(x-2\right)\)
\(=\left(x-2\right)\left(x-1\right)\)