Mathematics Factorization fill in the blanks Please answer in detail, thank you 24 20 6 20

1）3ay-3by=3y(a-b) _

2) A squared - 9b square = (a-3b)(a+3b) 3) a squared - 14a + 49 = (a-7) 2 4) n square - m square = (n-m) (n + m) 5) a square + 4ab + 4b square = (a + 2b) 2 6) x square + 8x + 12 = (x + 2) (x + 6) 7) x square (a + b) - y square (a + b).

a+b)(x^2-y^2)

a+b)(x-y)(x+y)

8) 6a(a-b) squared - 8(a-b) cubic.

2(a-b)^2[3a-4(a-b)]

2(a-b)^2(4b-a)

1)3y（a-b)

2)(a-3b)(a+3b)

3) (a-7) squared.

4)(n-m)(n+m)

5) (a+2b) squared.

6)(x+2)(x+6)

7)(a+b)(x-y)(x+y)

8) 2 (a-b) squared (-a+4b) is good.

1.Original = 3y(a-b)2Original = (a+3b)(a-3b)3

4 squared of the original formula = (a-7). （m+n）（n-m）5。(a+2b) 6

x+2)(x+6) 7.(x-y）（a+b）8.Original = 2(3a-4)(a-b).

1。Original formula = ab(a 2-2ab + b 2) = ab(a-b) 2 substituting a-b = 5, ab = 3.

Then the original formula = 3 * 5 2 = 75

2 Original = (3a-7-a-5)(3a-7+a+5) (4(a-6)).

2a-12) (4a-2) (4(a-6)) = 4(a-6) (2a-1) (4(a-6)) = 2a-1 when a = 1 50.

Original = (1 25)-1

3。Let x 2-2x=t

Original = t(t+2)+1

t^2+2t+1

t+1)^2

x^2-2x+1)^2

x-1)^4

Original = ab(a 2-2ab + b 2).

3*(a-b)^2

Original = (9a 2-42a+49-a 2-10a-25) (4(a-6)).

4(a-6)(2a-1) (4(a-6))=2a-1 when a = 1/50.

The original formula is equal to —the original = (x 2-2x) 2+2(x 2-2x)+1=(x 2-2x+1) 2

x-1)^4

(- x+fifths y) (x-fifths y).

x（x+6）=0

Just tidy up the left side.

<> took over the slag and Kai stared at Liang Ling.

The words are very good-looking, you try more, you should be fine.

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