因式分解(x²+x-4)(x²+x+3)+10
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因式分解(x²+x-4)(x²+x+3)+10
因式分解(x²+x-4)(x²+x+3)+10
因式分解(x²+x-4)(x²+x+3)+10
令a=x²+x
原式=(a-4)(a+3)+10
=a²-a-12+10
=a²-a-2
=(a-2)(a+1)
=(x²+x-2)(x²+x+1)
=(x+2)(x-1)(x²+x+1)
(x²+x-4)(x²+x+3)+10
=(x²+x)-(x²+x)-12+10
=(x²+x)-(x²+x)-2
=(x²+x-2)(x²+x+1)
=(x+2)(x-1)(x²+x+1)