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151: Rational Equations (Lvl 5)

Posljednje ažuriranje about 5 years ago

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Bell: review

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Practice test tomorrow. DeltaMath is due tomorrow night.

Pitanje 1

1.

divide: \frac{x+3}{x^2-9}\div\frac{x^2}{x^2-9x+18}

Pitanje 2

2.

subtract: \frac{5x+7}{x-4}-\frac{3x}{x^2-9x+20}

Notes: Finish Solving Rational Equations (lvl5)

Solve each.
Submit when done to check your answers.
We will go over them in 15-20 minutes

Reminders:

factor trinomials, difference of two squares, and/or factor out the GCF
a-x and x-a are opposites
domain matters (you cannot divide by zero!)

Pitanje 3

3.

1-\frac{1}{x-2}=\frac{5}{x^2-9x+14}

Pitanje 4

4.

\frac{x+5}{x+4}-\frac{2}{4-x}=\frac{2}{x-4}

Pitanje 5

5.

\frac{5}{x+9}+\frac{x+7}{x-9}=\frac{2x}{x-9}

Pitanje 6

6.

1-\frac{2x+1}{x+4}=\frac{3}{x^2-3x-28}

Pitanje 7

7.

\frac{1}{x+5}+\frac{x}{5-x}=\frac{3x+7}{x^2-25}

Pitanje 8

8.

Choose all that are true

I am confident in this lesson.

I would like some assistance.

I can find the common base.

I can find the domain.

I can decide when to reject answers.