(x+1)(x+2)(x+3)(x+4)+1怎么因式分解?
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(x+1)(x+2)(x+3)(x+4)+1怎么因式分解?
(x+1)(x+2)(x+3)(x+4)+1怎么因式分解?
(x+1)(x+2)(x+3)(x+4)+1怎么因式分解?
利用整体思想及完全平方和公式
(x+1)(x+2)(x+3)(x+4)+1
=[(x+1)(x+4)][(x+2)(x+3)]+1
=[(x²+5x)+4][(x²+5x)+6]+1
=[(x²+5x)²+10(x²+5x)+24]+1
=(x²+5x)²+10(x²+5x)+25
=[(x²+5x)+5]²
=(x²+5x+5)²
答:
(x+1)(x+2)(x+3)(x+4)+1
=[(x+1)(x+4)]*[(x+2)(x+3)]+1
=(x^2+5x+4)(x^2+5x+6)+1
=(x^2+5x)^2+10(x^2+5x)+24+1
=(x^2+5x)^2+2*5(x^2+5x)+5^2
=(x^2+5x+5)^2
(x+1)(x+2)(x+3)(x+4)+1
=[(x+1)(x+4)][(x+2)(x+3)]+1
=(x^2+5x+4)(x^2+5x+6)+1
=[(x^2+5x)+4][(x^2+5x)+6]+1
=(x^2+5x)^2+10(x^2+5x)+24+1
=(x^2+5x)^2+10(x^2+5x)+25
=[(x^2+5x)+5]^2
=(x^2+5x+5)^2
(x+1)(x+2)(x+3)(x+4)+1
=[(x+1)(x+4)][(x+2)(x+3)]+1
=(x²+5x+4)(x²+5x+6)+1
=[(x²+5x)+4][(x²+5x)+6]+1
=(x²+5x)²+10(x²+5x)+24+1
=(x²+5x)²+10(x²+5x)+25
=[(x²+5x)+5]²
=(x²+5x+5)².