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Problem 48b
See Exercise 47. (b)Which equation has two nonreal complex solutions?
- Solve each equation for x. 2(x-a) +b =3x+a
Problem 49
- Solve each equation or inequality. | 5x + 1/2 | -2 < 5
Problem 49
Problem 49
Solve each quadratic inequality. Give the solution set in interval notation. See Exam-ples 5 and 6. x2≤9
Problem 49a
Find each sum or difference. Write answers in standard form. (-2+4i) - (-4+4i)
- Solve each equation or inequality. | 2x+ 1/3 | +1 < 4
Problem 50
Problem 50
Solve each equation. See Examples 4–6. √(6x+7) - 9 = x-7
Problem 50
Solve each quadratic inequality. Give the solution set in interval notation. See Exam-ples 5 and 6. x2>16
- Evaluate the discriminant for each equation. Then use it to determine the number and type of solutions. 8x² = -2x -6
Problem 50
Problem 50a
Find each sum or difference. Write answers in standard form. (-3+2i) - (-4+2i)
- Solve each equation for x. ax+b=3(x-a)
Problem 51
- Solve each equation or inequality. | 10 - 4x | + 1 ≥ 5
Problem 51
Problem 51
Solve each equation. See Examples 4–6. √4x-x+3=0
- Solve each equation using the quadratic formula. See Examples 5 and 6. x^2 - x - 1 = 0
Problem 51
- Evaluate the discriminant for each equation. Then use it to determine the number and type of solutions. -8x² + 10x = 7
Problem 51
Problem 51a
Find each sum or difference. Write answers in standard form. (2-5i) - (3+4i) - (-2+i)
- Solve each equation or inequality. | 12- 5x | + 3 ≥ 9
Problem 52
- Solve each equation using the quadratic formula. See Examples 5 and 6. x^2 - 3x - 2 = 0
Problem 52
- Evaluate the discriminant for each equation. Then use it to determine the number and type of solutions. 16x² +3 = -26x
Problem 52
Problem 52
Solve each quadratic inequality. Give the solution set in interval notation. See Exam-ples 5 and 6. 4x2+3x+1≤0
Problem 52
Solve each equation. See Examples 4–6. √2x-x+4=0
Problem 52a
Find each sum or difference. Write answers in standard form. (-4-i) - (2+3i) + (-4+5i)
- Solve each equation for x. x/a-1 = ax+3
Problem 53
- Solve each equation or inequality. | 3x- 7 | + 1 < -2
Problem 53
Problem 53
Solve each equation. See Examples 4–6. √x-√(x-5)=1
- Solve each equation using the quadratic formula. See Examples 5 and 6. x^2 - 6x = -7
Problem 53
Problem 53
Solve each quadratic inequality. Give the solution set in interval notation. See Exam-ples 5 and 6. x2-2x≤1
Problem 54
Solve each equation or inequality.
Problem 54
Solve each quadratic inequality. Give the solution set in interval notation. See Exam-ples 5 and 6. x2+4x>-1
Problem 54a
Find each sum or difference. Write answers in standard form. 3√7 - (4√7-i) -4i + (-2√7+5i)