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Science lovers learn math answers on the 7 th.
1, known:? ﹙x﹚=x? -x-2,g﹙x﹚=x? -6x+8,p﹙x﹚=x? ﹢3x﹢2

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),