Math · Advanced Math · Sunday, September 6, 2026
Use the identity (x+y)^2 = x^2 + 2xy + y^2 to find x^2+y^2.
In short
On Digital SAT Math questions about advanced math, use the identity (x+y)^2 = x^2 + 2xy + y^2 to find x^2+y^2.
Use the identity $(x+y)^2 = x^2 + 2xy + y^2$ to find $x^2+y^2$.