Question

Use FOIL to multiply the two binomials.(b + 3)(b + 9)

A.

b2 + 12b + 27








B.

b2 + 6b – 27








C.

b2 – 6b – 27








D.

b2 – 27

Answer 1

http://www.mathsisfun.com/definitions/foil-method.html

Answer 2

You can eliminate B-D because 27 will be positive, not negative.