Rumus : A^2 + 2AB + B^2 = (A + B)^2 Contoh: x^2 + 2xy + y^2

Rumus : A^2 + 2AB + B^2 = (A + B)^2 Contoh: x^2 + 2xy + y^2 = (x +y)^2 x^2 - 2xy + y^2 = (x - y)^2 4x^2 - 20xy + 25y^2 = (2x - 5y)^2 Faktorkanlah : (x + y)^2 + 2a (x + y) + a^2 ; x^2 - 2x (y - z) + (y - z)^2