Sec 7.3-Focus

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Rational Equations page 7.3 - 15 Section 7.3 Focus Exercises 1. For each fraction, identify the value(s) that x cannot be. Write your answers as x c. a) x – 7 x + 4 b) 3x + 6 2x – 6 c) 2x + 5 x 2 + 8x – 20 d) 3x – 1 3x 2 + 10x + 8 2. Solve each equation by first identifying the LCD and clearing the fractions. Check your answer to show that it is a solution. a) 1 5 x = 6 x 2 b) 1 x 2 + 1 6x = 1 2 1 3x c) 3 x 2 1 x = 1 4 d) x 4 + 1 x = 5 4 1 2x

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Rational Equations page 7.3 - 16 3. Solve each equation by first identifying the LCD and then clearing the fractions. Be sure to note the values that will make a denominator 0
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Unformatted text preview: . Check your answers to show they are solutions. a) 1 2x + 1 x = 1 x – 1 b) 2 x + 2 + 3 x – 2 = 1 c) 3 x 2 – x + x x – 1 = 1 d) 3 x 2 + 2x + 4 x + 2 = 1 Rational Equations page 7.3 - 17 4. Solve each equation by first identifying the LCD and then clearing the fractions. Be sure to note the values that will make a denominator 0 . Check your answers to show they are solutions. a) 2 + 2 x – 3 = x – 1 x – 3 b)-1 – 1 x + 1 = 2x + 3 x 2 + x c) 6 x – 3 = 2 + 10 x 2 – 3x d) x + 8 x – 4 = x + 4 x – 4 + 1...
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