Answer:
[tex].[/tex]
Step-by-step explanation:
IdEnTiTy UsED
[tex] {x}^{2} - {y}^{2} = (x + y)(x - y)[/tex]
1)
[tex](x - 5)(x - 5)[/tex]
=(x-5)²
2)
[tex](3x - 2)(3x + 2)[/tex]
[tex] {(3 x)}^{2} - {(2)}^{2} [/tex]
[tex] = 9 {x}^{2} - 4[/tex]
3)
[tex](1+x)(1+x)[/tex]
= (1+x)²
