Warm Up

Factor:

1.

2.

210 25x x

Homework Check 6.4

FactoringFactoring

Factoring a polynomial means expressing it as a

product of other polynomials.

Look for the GCF!

What is the GCF?

2x3 + 4x2 – 6x

Factor OUT the GCF!!!

Step #1

Step #2

2x(x2 + 2x – 3)

ax2 + bx + c

Find the numbers that are factors of ‘a·c’

GCF, leave it alone on the outside!

Step #3

ax2 + bx + c

Which of those factors in step 2 add

to give you ‘b’?

1) x2 + 9x + 20

Find the numbers that are factors of ‘a·c’ and add to give you ‘b’.

Find 2 numbers that are factors of ‘a·c’ and add

to give you ‘b’.

2) x2 - 2x - 24 3) x2 + 11x + 18

#4

Factor x2 -3x -10

#5

Factor x2 – 5x + 6

#6#6

x2 + 4x – 12

#7 You try!#7 You try!

x2 - 9x + 20

#8 You try!#8 You try!

x2 +4x -32

Reminder!!

Don’t forget to check your answer by multiplying!

Factoring Practice Worksheet

Coming up…

HW 6.5 tonight

Tutoring tomorrow after school

Quiz 6.2 – Friday!