【分解因式】m²-m 6+2a 3m²-12 2m²-2 a³+2a²b 5a-20【分解因式】m²-m6+2a3m²-122m²-2a³+2a²b5a-203x³+9x²x²-3x2x²-4xy2x-2y
问题描述:
【分解因式】m²-m 6+2a 3m²-12 2m²-2 a³+2a²b 5a-20
【分解因式】
m²-m
6+2a
3m²-12
2m²-2
a³+2a²b
5a-20
3x³+9x²
x²-3x
2x²-4xy
2x-2y
答
m²-m=m(m-1)
6+2a=2(a+3)
3m²-12=3(m²-4)=3(m+2)(m-2)
2m²-2=2(m²-1)=2(m+1)(m-1)
a³+2a²b=a²(a+b)
5a-20=5(a-4)
3x³+9x²=3x²(x+3)
x²-3x=x(x-3)
2x²-4xy=2x(x-2y)
2x-2y=2(x-y)
答
m²-m=m(m-1)
6+2a=2(3+a)
3m²-12=3(M^-4)=3(m+2)(m-2)
2m²-22(m+1)(m-10
a³+2a²b=a^2(a+2b)
5a-20=5(a-4)
3x³+9x²=3x^2(x+3)
x²-3x=x(x-3)
2x²-4xy=2x(x-2y)
2x-2y=2(x-y)
答
m²-m=m(m-1)
6+2a=2(a+3)
3m²-12=3(m²-4)=3(m+2)(m-2)
2m²-2=2(m²-1)=2(m+1)(m-1)
a³+2a²b=a²(a+2b)
5a-20=a(a-4)
3x³+9x²=3x²(x+3)
x²-3x=x(x-3)
2x²-4xy=2x(x-2y)
2x-2y=2(x-y)