A²-4= 25-x²= 9b²-16= 49p²-16= A²-b²= A²x²-y²= 49c²-25d²=

Question

A²-4=
25-x²=
9b²-16=
49p²-16=
A²-b²=
A²x²-y²=
49c²-25d²=

Answer 1

1(а-2)(а+2)
2(5-х) (5+х)
3(3b-4)(3b+4)
4(7p-4)(7p+4)
5(a-b) (a+b)
6--
7(7c-5d) (7c+d)