( 1)x2 = 64(2)5x 2-= 0(3)(x+5)2 = 16

(4)8(3-x)2–72 = 0(5)2y = 3 y2

(6)2(2x- 1)-x( 1-2x)= 0(7)3x(x+2)= 5(x+2)

(8)( 1-3y)2+2(3y- 1)= 0

Use matching method or formula method to solve the following equations:

( 1)x + 2x + 3=0 (2)x + 6x-5=0

(3) x -4x+ 3=0 (4) x -2x- 1 =0

(5)2x+3x+ 1 = 0(6)3x+2x- 1 = 0

(7) 5x -3x+2 =0 (8) 7x -4x-3 =0

(9)-x-x+ 12 = 0( 10)x-6x+9 = 0

Solve this equation in an appropriate way.

(3-x)？ +x？ =5 x？ +(2√3)x+3=0

Break down the following categories.

1.xn+4- 169xn+2 (n is a natural number)

2.(a+2b)2- 10(a+2b)+25；

3.2 x2+9 x2-y2

(1) What if (-1-b)? M = B2- 1, then m = _ _ _ _ _

(2) If x2+ax+b can be decomposed into (x+ 1) (x-2), then a = _ _ _ _ _ _ _ _ _ _ _ _

(3) If 9X2+2 (m-4) x+ 16 is a completely flat mode, the value of m is _ _ _ _ _.

(4) the decomposition factor a2 (b-c)-b+c = _ _ _ _ _.

(5) The decomposition factor xy-2y-2+x = _ _ _ _ _.

(6) Factorization factor x3-4x = _ _ _ _ _ _ _ _ in the real number range.

Break down the following categories.

( 1)4x(a-b)+(B2-a2)；

(2)(a2+B2)2-4a2b 2；

(3)x4+2 x2-3；

(4)(x+y)2-3(x+y)+2；

(5)x3-2 x2-3x；

(6)4a 2-B2+6a-3b；

ax-ay

x2- 1

(2)a2-4=a2-22

(3)x2-4=x2-22

x2-9=

x2-25=

x3-9x=

x3-4x=

a3-ab2

12(2008, Yibin City, Sichuan Province) Factorization: 3y2-27=.

13.2a2-8b214 (Xuzhou City, 2008) Factorization: 2 x2-8 = _ _ _ _ _ _ _ _ _ _ _ _ _

xy–x-y+ 1 =。 .

22.4mn (m+2n) (m-2n) 23 (Yangzhou, 2008) knows that x+y=6 and xy=-3, then x2y+xy2 = _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _