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Review: Multiplying Binomials Binomial: x + 3, 2x – 7, 5x + 8
Multiplying two binomials by FOIL method:
Review: Multiplying Binomials Ex. Multiply:
Review: Factoring Trinomials Trinomial:
Factoring a trinomial is the reverse of multiplying two binomials
Review: Factoring Trinomials
Review: Factoring Trinomials Ex. Factor
Form:
Factors of 6: 1,6 2,3 -1,-6 -2,-3
Possible Factorization Outer and Inner Terms
Review: Factoring Trinomials Ex. Factor
Review: Factoring Trinomials Factoring Trinomials where the coefficient of squared
term is not 1
Ex.
First two terms must multiply to give us
Review: Factoring Trinomials Ex.
Factors of 28 (Both negative since x term is negative and constant term is positive):
-1,-28 -2,-14 -4,-7
Now we try all combinations:
Review: Factoring Trinomials Ex.
Review: Factoring Trinomials Ex.
Solving Quadratic Equations
Methods:
1) Factoring
2) Quadratic Formula
Solving Quadratic EquationsMethod 1: Factoring
Solving Quadratic EquationsMethod 1: Factoring
Ex. Solve
1)
2)
Solving Quadratic EquationsMethod 2: Quadratic Formula
Solving Quadratic EquationsMethod 2: Quadratic Formula
Ex.
Application
Application
We chose the answer that makes sense. Age is a positive quantity!
Therefore, 26 year old women have 115 mm Hg blood pressure
Practice ProblemsPage 399
FOIL: #5, 7
Factor: #11, 15, 17, 21, 25, 29
Solve by Factoring: #37, 41, 47, 51
Solve by Quadratic Formula: #53, 61, 65
Applications: #85