平方差公式因式分解练习题
因式分解练习题
(平方差公式)
姓名班级
1. x2-16
(2)-x2+y2
(3)64-a2
(4)4x2-9y2
(5)36-25x2
(6)16a2-9b2
(7)4
9m2-
(8)(x+p)2-(x+q)2(9)16(m-n)2-9(m+n)2(10)9x2-(x-2y) 2(11)4a2-16
(12)a5-a3
(13)x4-y4
(14)32a3-50ab2 (15)36
492-
c
16)
256
9
4
2n
m
-
(17)9
25
.02
2+
-m
a
(18)
n
x2
4-
(19)1
)
(2-
+b
a
2294)20(y x -
2
21681.0)21(b a - 2
201.09
4)22(-m (4)
23)1(28+-a a a
(5)
()2
2
4a c b +--
(6)44161b a -
(7)()()2
223n m n m --+
(8)()
2
2
4y x z +-
(9) ()()2
2
254y x y x +--
(10)()()2
2c b a c b a -+-++
(11)()()b a b a +-+43
36-25x 2 16a 2-9b 2
29a -
3x x -
2249a b -
2422516a y b -+
3375a a -
39a b ab -
44x y -
(1) 36-x 2
(2) a 2-91
b 2
(3) x 2-16y 2
(4) x 2y 2-z 2
(5) (x+2)2-9
(6)(x+a)2-(y+b)2
(7) 25(a+b)2-4(a -b)2
(8) (x+y)2-(x -y)2
(9)22
()()a b c a b c ++-+-
(10)2
2(2)16(1)a a -++-
(1)a 2-144b 2
(2)πR 2-πr 2
(3)-x 4+x 2y 2
(4) 16x 2-25y 2
(5) (a+m)2-(a+n)2
(6) 75a 3b 5-25a 2b 4
(7)3(a+b )2-27c 2
(8)16(x+y )2-25(x-y )2
(9)a 2(a-b )+b 2(b-a )
(10)(5m 2+3n 2)2-(3m 2+5n 2)
2