Solving Quadratics Equation Using QF

Determine the values of

a, b, and c for

the quadratic equation:

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

Use the quadratic formula to solve

n² = 9n - 20

• n = 4 and n = -5

• n = -4 and n = 5

• n = -4 and n = -5

• n = 4 and n = 5

Solve using the quadratic formula.

2x² - 9x - 35 = 0

• x = 7/2 and x = -6

• x = -5/2 and x =5

• x = -3/7 and x =6

• x = -5/2 and x = 7

Solve using the Quadratic Formula:
x² + 4x + 3 = 0

• x = 1 and x = 3
• x = 6 and x = -2
• x = -1 and x = -3

Tags

CCSS.HSA-REI.B.4B

The discriminant is

• ax² + bx + c

• b - 4ac

• b² - 4ac

• b² + 4ac

What is the discriminant of

6x² − 2x − 3 = 0?

• 76

• 29

• 68

• none of these

What is the discriminant of

-2x² − x − 1 = 0?

• 76

• -7

• 9

• none of these

If the discriminant is positive, then the solution will be

• one real solution

• two real solutions

• no real solutions

• one imaginary solution

How many solutions will this quadratic equation x²+8x+16 = 0 has?

• 2 real solutions

• 2 imaginary solution

• 1 solution

• 3 solutions

Use the quadratic formula to solve

2x² + 2x - 12 = 0?

• x = -2 and x = 3

• x = 2 and x = 3

• x = 2 and x = -3

• x = -2 and x = -3