Question

EJERO
Factorizar o descomponer en dos factores
1. x2 - y2
2. a2 -1.
3. a2-4 .
4. 9-62
5. 1 - 4m2​

Answer 1

1.(x-y)(x+y)

2.(a-1)(a+1)

3.(a-2)(a+2)

4.?????

5.(1-2m)(1+2m)