How do you multiply (4c+9d)2?

1 Answer
Aug 13, 2017

See a solution process below:

Explanation:

We can use this rule for multiplication to multiply the expression:

(x+y)2=x2+2xy+y2

Substituting 4c for x and 9d for y gives:

(4c+9d)2(4c)2+(24c9d)+(9d)2

16c2+72cd+81d2