作业帮3x2-12x,x2-6x+9,16m5-m,x3y-2x2y2+xy3
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3x2-12x,x2-6x+9,16m5-m,x3y-2x2y2+xy3
3x2-12x,x2-6x+9,16m5-m,x3y-2x2y2+xy3
3x2-12x,x2-6x+9,16m5-m,x3y-2x2y2+xy3
3x2-12x,
=3x(x-4)
x2-6x+9,
=x²-2×x×3+3²
=(x-3)²
16m5-m,
=m(16m的4次方-1)
=m(4m²+1)(4m²-1)
=m(4m²+1)(2m+1)(2m-1)
x3y-2x2y2+xy3
=xy(x²-2xy+y²)
=xy(x-y)²
3x2-12x，
=3x(x-4)
x2-6x+9，
=x²-2×x×3+3²
=(x-3)²
16m5-m，
=m(16m的4次方-1)
=m(4m²+1)(4m²-1)
=m(4m²+1)(2m+1)(2m-1)
x3y-2x2...
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3x2-12x，
=3x(x-4)
x2-6x+9，
=x²-2×x×3+3²
=(x-3)²
16m5-m，
=m(16m的4次方-1)
=m(4m²+1)(4m²-1)
=m(4m²+1)(2m+1)(2m-1)
x3y-2x2y2+xy3
=xy(x²-2xy+y²)
=xy(x-y)²
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3x2-12x,x2-6x+9,16m5-m,x3y-2x2y2+xy3
解方程：1/x2+x +1/x2+3x+2 +1/x2+5x+6 +1/x2+7x+12 +1/x2+9x+20=5/x2+11x-708解方程：1/x2+x +1/x2+3x+2 +1/x2+5x+6 +1/x2+7x+12 +1/x2+9x+20=5/x2+11x-708
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