因式分解 ,要过程。。
发布网友
发布时间：2024-10-01 21:37
共1个回答
热心网友
时间：2024-12-02 03:21
=3x(x²-4)
=3x(x+2)(x-2)
x²(x-2y)+y²(2y-x)
=x²(x-2y)-y²(x-2y)
=(x-2y)(x²-y²)
=(x-2y)(x+y)(x-y)
-16+p⁴
=p⁴-16
=(p²+4)(p²-4)
=(p²+4)(p+2)(p-2)
9(a-b)²-25(a+b)²
=[3(a-b)+5(a+b)][3(a-b)-5(a+b)]
=(8a+2b)(-2a-8b)
=-4(4a+b)(a+4b)
a^5-a³
=a³(a²-1)
=a³(a+1)(a-1)
m²(x-y)+n²(y-x)
=m²(x-y)-n²(x-y)
=(x-y)(m²-n²)
=(x-y)(m+n)(m-n)
y² -y/2 +1/16
=(y- 1/4)² /完全平方公式，只一步。
4x²y²-4xy+1=(2xy-1)² /完全平方公式，只一步
9m²-24mn+16n²=(3m-4n)² /完全平方公式，只一步
8a-4a²-4
=-4(a²-2a+1)
=-4(a-1)²
(x-2)²+10(x-2)+25
=[(x-2)+5]²
=(x+3)²
(a+b)²-6(a+b)+9
=[(a+b)-3]²
=(a+b-3)²
(z²+1)²-4z(z²+1)+4z²
=[(z²+1)-2z]²
=[(z-1)²]²
=(z-1)⁴
(x+y)³-4xy(x+y)
=(x+y)[(x+y)²-4xy]
=(x+y)(x-y)²
