将(x2-x-6)(x2+3x-4)+24分解因式得 _ .
问题描述:
将(x2-x-6)(x2+3x-4)+24分解因式得 ___ .
答
(x2-x-6)(x2+3x-4)+24
=(x-3)(x+2)(x-1)(x+4)+24
=(x-3)(x+4)(x-1)(x+2)+24
=(x2+x-12)(x2+x-2)+24
=(x2+x)2-14(x2+x-2)+48
=(x2+x-6)(x2+x-8)
=(x+3)(x-2)(x+
)(x+1+
33
2
).1-
33
2
故答案为:(x+3)(x-2)(x+
)(x+1+
33
2
).1-
33
2