- Evaluate the discriminant for each equation. Then use it to determine the number of distinct solutions, and tell whether they are rational, irrational, or nonreal complex numbers. (Do not solve the equation.) See Example 9. 4x^2 = -6x + 3
Problem 87
Problem 88
Solve each inequality. Give the solution set using interval notation.
Problem 89
Evaluate the discriminant for each equation. Then use it to determine the number of distinct solutions, and tell whether they are rational, irrational, or nonreal complex numbers. (Do not solve the equation.) See Example 9.
Problem 89a
Simplify each power of i. i25
Problem 90
Simplify each power of i. i29
Problem 90
Determine whether each equation has a graph that is symmetric with respect to the x-axis, the y-axis, the origin, or none of these.
Problem 91
Solve each equation. See Examples 8 and 9. (x-1)2/3+(x-1)1/3 -12 = 0
Problem 91
Evaluate the discriminant for each equation. Then use it to determine the number of distinct solutions, and tell whether they are rational, irrational, or nonreal complex numbers. (Do not solve the equation.) See Example 9.
Problem 92
Simplify each power of i. i26
Problem 92
Solve each inequality. Give the solution set using interval notation. x²-3x ≥ 5
Problem 92
Solve each equation. See Examples 8 and 9. (2x-1)2/3+2(2x-1)1/3-3=0
Problem 93
Simplify each power of i. i23
Problem 94
Simplify each power of i. i27
Problem 94
Solve each equation. See Examples 8 and 9. (x+5)2/3+(x+5)1/3-20=0
Problem 95
Solve each equation. See Examples 8 and 9. 4(x+1)4-13(x+1)2=-9
Problem 95
Answer each question. Find the values of a, b, and c for which the quadratic equation. has the given numbers as solutions. (Hint: Use the zero-factor property in reverse.)
Problem 95
Solve each inequality. Give the solution set using interval notation. 3x+6 / x-5 > 0
Problem 96
Answer each question. Find the values of a, b, and c for which the quadratic equation. has the given numbers as solutions. (Hint: Use the zero-factor property in reverse.)
Problem 96
Solve each inequality. Give the solution set using interval notation. x+7 / 2x+1 ≤1
Problem 97
Simplify each power of i. i-13
Problem 97
Solve each inequality. Give the solution set using interval notation. 3x-2/x - 4 > 0
Problem 97
Solve each equation. See Examples 8 and 9. 6(x+2)4-11(x+2)2=-4
- Simplify each power of i. i^-14
Problem 98
- Answer each question. Find the values of a, b, and c for which the quadratic equation. ax^2 + bx + c = 0 has the given numbers as solutions. (Hint: Use the zero-factor property in reverse.) i, -i
Problem 98
Problem 98
Solve each inequality. Give the solution set using interval notation. 5x+2/x +1 < 0
Problem 98
Solve each equation. See Examples 8 and 9. 8(x-4)4-10(x-4)2=-3
Problem 99
Simplify each power of i. 1/i-11
Problem 99
Use the method described in Exercises 83–86, if applicable, and properties of absolute value to solve each equation or inequality. (Hint: Exercises 99 and 100 can be solved by inspection.)
Problem 99
Solve each inequality. Give the solution set using interval notation. 3/x-1 ≤ 5/x+3
Problem 100
Simplify each power of i. 1/i-12
Ch. 1 - Equations and Inequalities
