Calculation: [? ﹝x﹞-g﹝x﹞]? p﹝x﹞
2. if x? -6x? + 1 1x-6 =(x- 1)(x? +mx+n), find the values of m and n.
1,[? ﹝x﹞-g﹝x﹞]? p﹝x﹞
=(x? -x-2-x? +6x-8)﹙x? ﹢3x﹢2)
=5(x-2)(x+ 1)(x+2)
=5(x? -4)(x+ 1)
=5x? +5x? -20x-20
2,
(x- 1)(x? +mx+n),