问题:
下列各式因式分解正确的是
A.4a2-4a+1=4a(a-1)+1
B.x2-4y2=(x-4y)(x+4y)
C.2a2+2a=2(a2+a)
D.-5a2+25a=-5a(a-5)
下列各式因式分解正确的是
A.4a2-4a+1=4a(a-1)+1
B.x2-4y2=(x-4y)(x+4y)
C.2a2+2a=2(a2+a)
D.-5a2+25a=-5a(a-5)
A.4a2-4a+1=4a(a-1)+1
B.x2-4y2=(x-4y)(x+4y)
C.2a2+2a=2(a2+a)
D.-5a2+25a=-5a(a-5)
参考答案: