Factorization 2a 2 ab 6b 2 a 19b 15

2a^2+ab-6b^2-a+19b-151/2(2a-3b+30)(2a+4b-1)16(2a+b)^3+54(a-2b)^32[8(2a+b)³+27(a-2b)³]2[2³(2a+b)³+3³(a-2b)³]2[(4a+2b)³+3a-6b)³]

2(4a+2b+3a-6b)[(4a+2b)²-4a+2b)(3a-6b)+(3a-6b)²]

2(7a-4b)[(4a+2b)²-4a+2b)(3a-6b)+(3a-6b)²]

a^6-b^6

a³+b³)(a³-b³)

a+b)(a-ab+b)(a-b)(a+ab+b)(a+b)(a-b)(a-ab+b)(a-ab+b)(a+ab+b) I hope to help you, hope, please ask if you don't understand

1.Factorization 2a 2 + ab-6b 2-a + 19b-151 2 (2a - 3b + 30) (2a + 4b - 1) 2Known formula:

x 3+y 3=(x+y)(x 2-xy+y 2)x 2-y 2=(x-y)(x 2+xy+y 2)Factoring the following formula:

1）16（2a+b)^3+54(a-2b)^3=2[8(2a+b)^3+27(a-2b)^2]=2[(4a+2b)^3+(3a-6b)^3]

2(4a+2b+3a-6b)[(4a+2b)^2-(4a+2b)(3a-6b)+(3a-6b)^2]

2(7a-4b)[(4(2a+b)^2-6(2a+b)(a-2b)+9(a-2b)^2)]

2) a^6-b^6=(a^3+b^3)(a^3-b^3)(a+b)(a^2-ab+b^2)(a-b)(a^2+ab+b^2)

6a 2-5ab-6b 2+2a+23b-20 (2a 3b) (3a 2b) +2a +23b-20 (Nonomori once cross multiplication).

2a 3b 4) (3a 2b 5) (second cross multiplication) first cross multiplication.

2a ﹣3b

3a 2b second cross multiplication.

2a－3b 4

3a Chonglu 2b Scattered ridge zone 5

Solution: Original (a—3b) 2-25

a—3b—5）×（a—3b＋5）

It's so hard to type, I can't type the minus sign, so I can only use this instead.

The cross is respectfully touched and talked about.

a-3b）（a-2b）-2c(a-3b)(a-3b)(a-2b-2c)