分组分解法 因式分解 2ax-10ay+5by-bx3ax+4by+4ay+3bxm平方+5n-mn-5m20(x+y)+x+yX平方-y平方+ax+aya平方-2ab+b平方-c平方x立方+x平方y-xy2-y立方4a平方-b平方+6a-3b
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![分组分解法 因式分解 2ax-10ay+5by-bx3ax+4by+4ay+3bxm平方+5n-mn-5m20(x+y)+x+yX平方-y平方+ax+aya平方-2ab+b平方-c平方x立方+x平方y-xy2-y立方4a平方-b平方+6a-3b](/uploads/image/z/1261563-51-3.jpg?t=%E5%88%86%E7%BB%84%E5%88%86%E8%A7%A3%E6%B3%95+%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3+2ax-10ay%2B5by-bx3ax%2B4by%2B4ay%2B3bxm%E5%B9%B3%E6%96%B9%2B5n-mn-5m20%28x%2By%29%2Bx%2ByX%E5%B9%B3%E6%96%B9-y%E5%B9%B3%E6%96%B9%2Bax%2Baya%E5%B9%B3%E6%96%B9-2ab%2Bb%E5%B9%B3%E6%96%B9-c%E5%B9%B3%E6%96%B9x%E7%AB%8B%E6%96%B9%2Bx%E5%B9%B3%E6%96%B9y-xy2-y%E7%AB%8B%E6%96%B94a%E5%B9%B3%E6%96%B9-b%E5%B9%B3%E6%96%B9%2B6a-3b)
分组分解法 因式分解 2ax-10ay+5by-bx3ax+4by+4ay+3bxm平方+5n-mn-5m20(x+y)+x+yX平方-y平方+ax+aya平方-2ab+b平方-c平方x立方+x平方y-xy2-y立方4a平方-b平方+6a-3b
分组分解法 因式分解
2ax-10ay+5by-bx
3ax+4by+4ay+3bx
m平方+5n-mn-5m
20(x+y)+x+y
X平方-y平方+ax+ay
a平方-2ab+b平方-c平方
x立方+x平方y-xy2-y立方
4a平方-b平方+6a-3b
分组分解法 因式分解 2ax-10ay+5by-bx3ax+4by+4ay+3bxm平方+5n-mn-5m20(x+y)+x+yX平方-y平方+ax+aya平方-2ab+b平方-c平方x立方+x平方y-xy2-y立方4a平方-b平方+6a-3b
20(x+y)+x+y=20(x+y)+(x+y)=21(x+y)
X平方-y平方+ax+ay=(x+y)(x-y)+a(x+y)=(x+y)(x-y+a)
a平方-2ab+b平方-c平方=(a-b)²-c²=(a-b+c)(a-b-c)
x立方+x平方y-xy2-y立方=x²(x+y)-y²(x+y)=(x+y)(x²-y²)=(x+y)(x+y)(x-y)=(x+y)²(x-y)
4a平方-b平方+6a-3b=(2a+b)(2a-b)+3(2a-b)=(2a-b)(2a+b+3)
2ax-10ay+5by-bx
=2a(x-5y)-b(x-5y)
=(2a-b)(x-5y)
3ax+4by+4ay+3bx
=3x(a+b)+4y(a+b)
=(3x+4y)(a+b)
m平方+5n-mn-5m
=m(m-n)-5(m-n)
=(m-5)(m-n)
20(x+y)+x+y
=(x+y)(20+1)<...
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2ax-10ay+5by-bx
=2a(x-5y)-b(x-5y)
=(2a-b)(x-5y)
3ax+4by+4ay+3bx
=3x(a+b)+4y(a+b)
=(3x+4y)(a+b)
m平方+5n-mn-5m
=m(m-n)-5(m-n)
=(m-5)(m-n)
20(x+y)+x+y
=(x+y)(20+1)
=21(x+y)
X平方-y平方+ax+ay
=(x+y)(x-y)+a(x+y)
=(x+y)(x-y+a)
a平方-2ab+b平方-c平方
=(a-b)平方-c平方
=(a-b+c)(a-b-c)
x立方+x平方y-xy2-y立方
=(x-y)(x平方+xy+y平方)+xy(x-y)
=(x-y)(x平方+2xy+y平方)
=(x-y)(x+y)平方
4a平方-b平方+6a-3b
=(2a+b)(2a-b)+3(2a-b)
=(2a-b)(2a+b+30
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