Name:  ___________________________________                                     USM FEEDBACK SYSTEM

EXTRA CREDIT – Go and check the problems you missed on Quizzes using this process and turn in Monday!

:    Look to see where FEEDBACK fits into the USM of Learning:

:    CHECK YOUR WORK by evaluating the Polynomials with:

·        X = 0

·        X = 1

·        X = -1

P      The results should agree on both sides of the equation.  If they do not agree, you factored incorrectly.  Go back and check your work.

This will be good practice for the EOC on integers and evaluating.

:    EXAMPLES:

Factor a trinomial

x^2 -6x + 8      =          (x - 4)(x – 2)

0 – 0 + 8          =          (0 -4)(0 -2)

8          =          -4*-2

8          =          8          (check)

1^2 – 6(1) + 8 =          (1 – 4)(1 – 2)

1 – 6 + 8          =          -3(-1)

3          =          3          (checks)

(-1)^2 -6(-1) + 8         =          (-1 -4)(-1 -2)

1 + 6 + 8                      =          -5(-3)

15        =          15        (checks)

Multiply two Bionomials

(2x – 3) (4x + 5)          =          8x^2 -2x – 15

(0 – 3) (0 + 5)              =          -15

-3(5)                =          -15

-15                   =          -15

(2 – 3) (4 + 5)              =          8 – 2 -15

-1(9)                =          8 – 17

- 9                    =          -9

(2(-1) – 3)(4(-1) + 5)   =          8(-1)^2 – 2(-1) -15

(-2 – 3)(-4 + 5)            =          8(1) + 2 – 15

(-5)(1)              =          10 -15

-5                     =          -5