10 Days of Algebra (Day 9)

Solve for the negative root to:

2x² + 17x + 21 = 0

Mathematical Equivalence

ON

Solve
4m² - 100 = 0

• m=25, -25
• m=96
• m=5, -5
• m=-96

Factor and Solve

6x² + 17x + 12 = 0

• x = -4/3, x = -3/2

• x = 9, x = 8

• x = 4, x = 3

• x = -4, x = -3

Determine the values of

a, b, and c for

4x² – 8x = 3

• a = 4, b = -8, c = 3

• a = 4, b =-8, c =-3

• a = 4, b = 8, c = 3

• a = 4, b = 8, c = -3

Solve

2x² - 9x - 35 = 0

• x = 7/2, x = -6

• x = -5/2, x =5

• x = -3/7, x =6

• x = -5/2, x = 7

Use the quadratic formula to find the solutions for

y = -x² - 5x + 12

• No Real Solution

• 
• 
• 

• x = 7 and -2

• x = 7 and 2

• x = -7 and -2

• x = -7 and 2

• {4, 3}

• {-7, 8}

• {-7, 7}

• {4, -8}