Use FOIL: Front Outer Inner Last
Multiplying Polynomials
Use the Distributive Property (works for any multiplication)
Ex) Simplify 3(5z – 6) =
Ex) Simplify 2x
2
y(-3x + 2y – 4) =
Ex) Simplify (b
2
+ 2b – 1) – 3b(b + 5) =
Ex) Simplify (a + 1)(a
2
+ 2a + 1) =
Use FOIL: Front Outer Inner Last
(only good for multiplying binomials)
Ex) Simplify (z + 3)(z + 4)
Using Distributive Property Using FOIL
Ex) Simplify (x + 1)(x + 3)
Ex) Simplify (3w + 7)(2w – 5)
TRY – Simplify
1. 6(4a – 2) 2. (8v – 3)(-5v)
3. (b + 6)(b – 1) 4. –5p
2
(p
2
+ 2p + 1)
5. (2t – 5)(5t – 2) 6. (2d +4)
2
7. 8w – 5(2w + 7) 8. (2n – 7)(n
2
– n + 3)
Homework:
pg 79 #3-18(x3); pg 80-81 #1,2,6
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