Quiz 4-1 Review

Solve
12x² - 2x = 80

• x = -30, 16
• x = 30, -16
• x = -8/3, 5/2
• x = 8/3, -5/2

Solve
4m² - 100 = 0

• m=25, -25
• m=96
• m=5, -5
• m=-96

7x² - 26x - 8 = 0

• x = -1 and x = -7/8
• x = 4 and x = -2/7
• x = -4 and x = 2/7
• x = 4 and x = -7/2

81x²=25

• x= 5/9, -5/9

• x= -5/9, -5/9

• x= 5/9, 5/9

x²-7x=0

• x= 0, -7

• x= 0, 7

3x²-48=0

• x= 4, 4

• x= -4, -4

• x= -4, 4

6x²-x-2=0

• x= -2/3, 1/2

• x= 2/3, -1/2

• x= -2/3, -1/2

5x²-25x=5x-40

• x= -4, -2

• x= -4, 2

• x= 4, 2

Solve    2x^2 + 7x - 15 = 0

• -1.5 or 5
• No Solution
• -5 or 1.5
• 0.7 or 5

Solve for x.

16x² - 9 = 0

• x = 1.333

• x = ± (4/3)

• x = ± (3/4)

• x = (9/16)