The squared difference formula is a few problems for factoring, and the math elite comes

1、（7+4m)(7-4m)

2. (Quarters of the Y square + quarters of the Y square.)

3、（4x+1）（4x-1）

4. A b(b+2)(b-2), squared form (5, xy-9x 3y=xy(1-y 2)=xy(1+y)(1-y)6, a 3[x+y] -4a 3c = a 3([x+y] -4c )=a 3(x+y+2c)(x+y-2c).

a²[x-y]+b²[y-x] =[x-y]（4a²-b²）=[x-y]（2a+b）（2a-b)

a-b]²-a+b]²=[2（a-b）]²a+b]²=（3a-b)（a-3b)

1.(x-y+z) - (x-y-z) = [ x - y + z) +x - y - z) ]x - y + z) -x - y - z)].

2x - 2y) *2z

4z(x - y)

2.a- (5th power of a).

a (a^4 - 1)

a (a² +1)(a² -1)= -a(a + 1)(a - 1)(a² +1)3.16 (a-b) + (b-a) to the 3rd power.

a - b) [16 - a - b)² = (a - b) [4² -a - b)² = (a - b) (4 + a - b)(4 - a + b)4 .x squared - y squared + (x+y).

x + y) (x - y) +x + y) = (x + y) (x - y + 1) 5 questions are missing a + sign.

5.2a(m-n) to the 3rd power + 2a to the third power (n-m) = 2a(m-n) [m-n) 2a)] = 2a (m - n)(m - n + 2a)(m - n - 2a)

1: Original formula = (x-y+z+x-y-z)*[x-y+z-(x-y-z)]=(2x-2y)*2z

2: Original formula = a(1-a 4) = a(1+a 2) (1-a 2) = a(1+a 2) (1+a)(1-a).

3: Original formula = (a-b)[16-(a-b) 2]=(a-b)(4+a-b)(4-a+b).

4: Original formula = (x+y)(x-y)+(x+y)=(x+y)(x-y+1)5 The meaning of the question is unclear.

1 original = 2a (4a 2-1) = 2a (2a + 1) (2a-1) 2 original formula = 3abc (9a 2-b 2) = 3abc (3a + b) (3a-b).

3 original = 5 (a 2-4b 2) = 5 (a + 2b ) (a - 2b) 4 original = ((2n + 1) + (2n - 1) (2n + 1) - (2n - 1) ) = (4n ) (2) = 8n

-a to the fifth power + a

A-A to the fifth power.

a (1-a to the fourth power).

a (1-a quadratic) (1+a quadratic).

a(1-a)(1+a)(1+a) (1+a) 3 [m+n] 2 to the 2nd power -27n to the power.

3 ([m+n] 2nd power - (3n) to the second power) = 3 (m+n+3n) (m+n-3n).

3(m+4n)(m-2n)

25x101 to the second — 99 to the second to 25

25 (101 to the second of 99).

The power of a is [a-b] + the power of b [b-a] = the power of a [a-b] - the power of b [a-b] = (a-b) (the power of a - the power of b).

a-b）（a-b）（a+b）

a-b).

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