Question

(X+5)(x-5)=
(3-x)(3+x)=
(a-10)(a+10)=
(a+6)(a-6)=
(a-1)(a+1)=
(a+7)(a-7)=

Answer 1

x^2 - 25
9 - x^2
a^2 - 100
a^2 - 36
a^2 - 1
a^2 - 49