(x+1)(x+2)(x+3)(x+4)-24因式分解
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(x+1)(x+2)(x+3)(x+4)-24因式分解
(x+1)(x+2)(x+3)(x+4)-24因式分解
(x+1)(x+2)(x+3)(x+4)-24因式分解
(x+1)(x+2)(x+3)(x+4)-24因式分解
原式=[(x+1)(x+4)]*[(x+2)(x+3)]-24
=(x^2+5x+4)*(x^2+5x+6)-24
设A=x^2+5x,则
原式=(A+4)(A+6)-24=A^2+10A+24-24=A^2+10A
原式=A(A+10)
=(x^2+5x)(x^2+5x+10)
=x(x+5)(x^2+5x+10)
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x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
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x^5-x^4+x^3-x^2+x-1
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