(a+2b)2+2(a+2b+1)+2因式分解怎么做,
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(a+2b)2+2(a+2b+1)+2因式分解怎么做,
错了应该是(a+2b)的平方+2(a+2b+1)+2因式分解!
错了应该是(a+2b)的平方+2(a+2b+1)+2因式分解!
![(a+2b)2+2(a+2b+1)+2因式分解怎么做,](/uploads/image/z/1044802-10-2.jpg?t=%28a%2B2b%292%2B2%28a%2B2b%2B1%29%2B2%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%E6%80%8E%E4%B9%88%E5%81%9A%2C)
2(a+2b)+2(a+2b+1)+2
=2[(a+2b)+(a+2b+1)+1]
=2[a+2b+a+2b+1+1]
=2[2a+4b+2]
=2x2(a+2b+1)
=4(a+2b+1)
=2[(a+2b)+(a+2b+1)+1]
=2[a+2b+a+2b+1+1]
=2[2a+4b+2]
=2x2(a+2b+1)
=4(a+2b+1)