作业帮(X-2)(X-3)+2(X+6)(X-5)-3(X^2+7X+13)
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/05 16:30:12
(X-2)(X-3)+2(X+6)(X-5)-3(X^2+7X+13)
(X-2)(X-3)+2(X+6)(X-5)-3(X^2+7X+13)
(X-2)(X-3)+2(X+6)(X-5)-3(X^2+7X+13)
(x-2)(x-3)+2(x+6)(x-5)-3(x^2+7x+13)
=x^2-5x+6+2(x^2+x-30)-(3x^2+21x+39)
=x^2-5x+6+2x^2+2x-60-3x^2-21x-39
=-24x-93
*-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X ||
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