分解因式:5x2-10x+5=______.?
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解题思路:观察原式5x 2-10x+5,找到公因式5后,提出公因式后发现x 2-2x+1是完全平方公式,利用完全平方式继续分解即可.
5x2-10x+5,
=5(x2-2x+1),
=5(x-1)2.
,2,=(X-1)(X-1)/5,2,5x^2-10x+5
=5(x^2-2x+1)
=5(x-1)^2,2,5(3-2x),2,5x(2-x+1)=5x(1-x),1,(-X+1)(-5X-5),1,5*2-10+5=10-10x+5=-10+15=-5(2x-3),1,原式=5(2-2X+1)
=5(3-2X),0,解、原式=5(X2-2X+1)
=5(X-1)2,0,题5后面的是X还是乘...,0,
5x2-10x+5,
=5(x2-2x+1),
=5(x-1)2.
,2,=(X-1)(X-1)/5,2,5x^2-10x+5
=5(x^2-2x+1)
=5(x-1)^2,2,5(3-2x),2,5x(2-x+1)=5x(1-x),1,(-X+1)(-5X-5),1,5*2-10+5=10-10x+5=-10+15=-5(2x-3),1,原式=5(2-2X+1)
=5(3-2X),0,解、原式=5(X2-2X+1)
=5(X-1)2,0,题5后面的是X还是乘...,0,
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