To multiply (a+b) and (c+d), think of (c+d) as a single number say 'x'.
\(a+b)(c+d) = (a+b)x
= ax+bx ......(Right Distributive Property)
Substituting value of x, we get
= ac+ad+bc+bd .....(Left Distributive Property)
\(a+b)(c+d) = ac+ad+bc+bd
Directions: Solve the following multiplication problems. Also write at least ten examples of your own.