Math · Advanced Math · Monday, September 21, 2026
Use (x+y)^2=x^2+2xy+y^2 to relate the sum of squares to the product.
In short
On Digital SAT Math questions about advanced math, use (x+y)^2=x^2+2xy+y^2 to relate the sum of squares to the product.
Use $(x+y)^2=x^2+2xy+y^2$ to relate the sum of squares to the product.