Multiplying Polynomials Examples

(x + 2y)(3x – 4y + 5)

(x + 2y)(3x – 4y + 5)

= 3x2 – 4xy + 5x + 6xy – 8y2 + 10y Add 6xy and 4xy because they are like terms

= 3x2 + 2xy + 5x – 8y2 + 10y



(a+b) (c+d)=ac+ad+bc+bd



(2x+3) (xz-a)= 2x^2z-2xa+3xz-3a