Question

ayuda es para una tarea
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Answer 1

1) (x-y(x+y)

2) (m-n)(m+n)

3) (a-3)(a+3)

4) (4-b)(4+b)

5 (a-1)(a+1)

6 (2c-1)(2c+1)

7 (1-5ab)(1+5ab)

8 (7x-6)(7x+6)

9 (1-9m)(1+9m)

10 (a-12)(a+12)

11 (1-y)(1+y)

12 (11x-8m)(11x+8m)

13 (ab-8c)(ab+8c)

14 (x²-13)(x²+13)

15 (a⁴-1)(a⁴+1)

16 (x²-m⁴)(x²+m⁴)

17 (7a²b²-4c²)(7a²b²+4c²)

18 (6a⁴-10b⁹)(6a⁴+10b⁹)

19 (13c²-11d³e³)(13c²+11d³e³)

20 (15a-12b)(15a+12b)