Problem 65
In Exercises 61–76, solve each absolute value equation or indicate that the equation has no solution. |2x - 1| = 5
Problem 65
Solve each equation in Exercises 65–74 using the quadratic formula.
Problem 65a
In Exercises 61–66, find all values of x satisfying the given conditions. y1 = 5/(x + 4), y2 = 3/(x + 3), y3 = (12x + 19)/(x2 + 7x + 12). and y1 + y2 = y3.
Problem 66
Perform the indicated operation(s) and write the result in standard form. (8 + 9i)(2 - i) - (1 - i)(1 + i)
Problem 66a
Find all values of x satisfying the given conditions. y1 = (2x - 1)/(x2 + 2x - 8), y2 = 2/(x + 4), y3 = 1/(x - 2), and y1 + y2 = y3.
Problem 67
In Exercises 61–76, solve each absolute value equation or indicate that the equation has no solution. 2|3x - 2| = 14
Problem 67
In Exercises 65–70, perform the indicated operation(s) and write the result in standard form. (2 + i)2 - (3 - i)2
Problem 67
Solve each equation by completing the square.
Problem 67a
Solve each equation in Exercises 65–74 using the quadratic formula. x2 + 5x + 3 = 0
Problem 68
Solve each absolute value inequality. |3(x - 1)/4| < 6
Problem 68
In Exercises 65–70, perform the indicated operation(s) and write the result in standard form. (4 - i)2 - (1 + 2i)2
Problem 68a
In Exercises 67–70, find all values of x such that y = 0.
y = 2[3x - (4x - 6)] - 5(x - 6)
Problem 69
Solve each equation in Exercises 65–74 using the quadratic formula.
Problem 69
In Exercises 65–70, perform the indicated operation(s) and write the result in standard form. 5√-16 + 3√-81
Problem 69
In Exercises 67–70, find all values of x such that y = 0.
Problem 69
In Exercises 59–94, solve each absolute value inequality. |x| > 3
Problem 69
In Exercises 61–76, solve each absolute value equation or indicate that the equation has no solution. 7|5x| + 2 = 16
Problem 69a
Determine whether each statement makes sense or does not make sense, and explain your reasoning. I used the ordered pairs (- 2, 2), (0, 0), and (2, 2) to graph a straight line.
Problem 70
Solve each equation using the quadratic formula.
Problem 70a
Find all values of x such that y = 0. y = 1/(5x + 5) - 3/(x + 1) + 7/5
Problem 71
Solve each equation in Exercises 65–74 using the quadratic formula.
Problem 71
In Exercises 61–76, solve each absolute value equation or indicate that the equation has no solution. 2|4 - (5/2)x| + 6 = 18
Problem 71
Evaluate x2 - 2x + 2 for x = 1 + i.
Problem 71
In Exercises 59–94, solve each absolute value inequality. |x - 1| ≥ 2
Problem 71a
In Exercises 71–78, solve each equation. Then determine whether the equation is an identity, a conditional equation, or an inconsistent equation. 5x + 9 = 9(x + 1) - 4x
Problem 72
Without solving the given quadratic equation, determine the number and type of solutions.
Problem 72a
In Exercises 71–78, solve each equation. Then determine whether the equation is an identity, a conditional equation, or an inconsistent equation. 4x + 7 = 7(x + 1) - 3x
Problem 73
Evaluate (x2 + 19)/(2 - x) for x = 3i.
Problem 73
In Exercises 59–94, solve each absolute value inequality. |3x - 8| > 7
Problem 73
Exercises 73–75 will help you prepare for the material covered in the next section. Multiply: (7 - 3x)(- 2 - 5x)
Ch. 1 - Equations and Inequalities
