Download factoring and graph to reveal zeros.notebook

factoring and graph to reveal zeros.notebook
August 25, 2016
Warm­up
Solve:
a)
b)
Think pair share
How does factoring quadratic functions help us find the x­intercepts?
Zero Product Property
If the product of two factors is equal to zero, then one of both of
the factors must be zero.
factoring and graph to reveal zeros.notebook
August 25, 2016
Standard
A-SSE.3a
Day 2
Objective: Given a polynomial students will be able to factor a quadratic expression to reveal its zeros.
Daily objective:
Students will be able to analyze a trinomial to determine the factors of the trinomial by grouping and be able to justify their answer.
Vocabulary Review
Terms
Polynomials
Pair Share
contain variables and numbers multiplied
are expressions that contain many terms with positive whole number exponents
Factors
are numbers that multiply to get a certain product
binomials
a polynomial which contains two terms
trinomials
a polynomial which contains three terms
Factor:
To write a polynomial as a product of
prime binomials.
Quadratic expression:
A polynomial of the form: ax2+bx+c
where b and c are any real number and
a cannot be zero.
factoring and graph to reveal zeros.notebook
August 25, 2016
Multiply using the distributive property do not simplify.
a. (2x + 3)(x + 5) b. (3x ­ 4)(x ­ 2)
Think Write Pair Share
Identify a relationship between the constant and leading coefficient
with the middle terms.
Factor by grouping:
1.
2.
factoring and graph to reveal zeros.notebook
Example
August 25, 2016
Steps
Why
Solve:
Example
Solve:
Steps
Why