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151: Rational Equations (Lvl 5)

Last updated over 4 years ago
8 questions

Bell: review

1

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

1

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

Notes: Finish Solving Rational Equations (lvl5)

  1. Solve each.
  2. Submit when done to check your answers.
  3. 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!)
1

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

1

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

1

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

1

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

1

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

0

Choose all that are true

Practice test tomorrow. DeltaMath is due tomorrow night.