Factoring to Solve Polynomial Equations Lesson Slides

4 Slides • 7 Questions

1

7.4 Solving Polynomial Equations in Factored Form

By Gianna Attardi

2

Multiple Choice

Warm Up #1: Factor out the GCF.

$15b^5+5b^4+15b^3$

1

$5b^2\left(3b^2+b+3\right)$

2

$5b^3\left(3b^2+b+3\right)$

3

$b^3\left(3b^2+b+3\right)$

4

$b^2\left(3b^3+2b+3\right)$

3

Multiple Choice

Warm Up #2: Solve the equation.

$\left(b+6\right)\left(b+2\right)=0$

1

$b=6,\ b=-4$

2

$b=\frac{1}{2},\ b=\frac{1}{5}$

3

$b=\frac{8}{5},\ b=-6$

4

$b=-6,\ b=-2$

4

Multiple Choice

Warm Up #3: Solve the equation.

$m\left(2m-3\right)=0$

1

$m=-\frac{3}{2},\ m=0$

2

$m=5,\ m=8$

3

$m=-4,\ m=0$

4

$m=\frac{3}{2},\ m=0$

5

Take out your 7.4 Notes!

6

***EDIT***

Example 4a in your notes should be 2x²+8x=0.

7

8

Fill in the Blanks

Try #7 in your notes. Enter your answer here.

Solve.

$a^2+5a=0$

Type answer...

9

Fill in the Blanks

Try #8 in your notes. Enter your answer here.

Solve.

$3s^2-9s=0$

Type answer...

10

Fill in the Blanks

Try #9 in your notes. Enter your answer here.

Solve.

$4x^2=2x$

Type answer...

11

Poll

How'd you do?

I could teach this to someone else.

I've got it!

I'm getting there, but need more practice.

I'm LOST.

7.4 Solving Polynomial Equations in Factored Form

By Gianna Attardi

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