Question

Me ajudem pfvr!
1)(X+8)(X-8)=
2)(2a+5)(2a-5)=
3)(4a+7b)(4a-7b)=
4)(10X-5y)(10x+5y)=

Answer 1

Resposta:

1) x²

2) 2a²

3) 4a²

4) 10x²