(3-y)²
(5b-6)²
(3x-y)²
(x-7)²
(c-p)²
(7-½a)²
(5c-2a)²
(4b-1)²
(3-y)(3+y)=9+y^2
(5b+6)(5b-6)=25b^2-36
(3x-y)(3x+y)=9x^2-y^2
(x+7)(7-x)=49-x^2
(c-p)(c+p)=c^2-p^2
(7-1/2a)(7+1/2a)=49-1/4a^2
(5c+2a)(5c-2a)=25c^2-4a^2
(4b+1)(1-4b)=16b^2-1
(3-y)²
(5b-6)²
(3x-y)²
(x-7)²
(c-p)²
(7-½a)²
(5c-2a)²
(4b-1)²
(3-y)(3+y)=9+y^2
(5b+6)(5b-6)=25b^2-36
(3x-y)(3x+y)=9x^2-y^2
(x+7)(7-x)=49-x^2
(c-p)(c+p)=c^2-p^2
(7-1/2a)(7+1/2a)=49-1/4a^2
(5c+2a)(5c-2a)=25c^2-4a^2
(4b+1)(1-4b)=16b^2-1