Review of Solving Quadratic Equations

What is the best method to solve: x^2 - 3x - 4 = 0?

• Square Roots

• Factoring

• Completing the Square

• Quadratic Formula

Tags

CCSS.HSA-REI.B.4B

How many solutions does the equation 4x² + 4x + 1 = 0 have?

• 0

• 1

• 2

• More than 2

Tags

CCSS.HSA-REI.B.4B

What are the solutions to x² - 3x = 5?

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Tags

CCSS.HSA-REI.B.4B

Solve by any method: 5x² + 13x + 6 = 0

• x = -2 and x = -3/5

• x = 2 and x = 3/5

• x = -2 and x = 3/5

• x = 2 and x = -3/5

Tags

CCSS.HSA-REI.B.4B

In the quadratic formula, if b²-4ac>0, then the quadratic equation has

• two imaginary solutions

• two different real solutions

• two equal real solutions

• none of these

Tags

CCSS.HSA-REI.B.4B

If the discriminant equals 0, then the quadratic has:

• 1 Real Rational Solution

• 2 Real Rational Solutions

• 2 Real Irrational Solutions

• No Real Solution

Tags

CCSS.HSA-REI.B.4B

What is the discriminant? State the number and type of solutions for this quadratic equation. 4x² + 6x - 4 = 0

• -28, No Solutions

• 28, 2 Real Irrational Solutions

• 100, 2 Real Rational Solutions

• 100, 2 Real Irrational Solutions

Tags

CCSS.HSA-REI.B.4B

To complete the perfect square trinomial in the expression x²-22x+_____, we need to add

• 11

• 44

• 121

• 144

Tags

CCSS.HSA-REI.B.4B

Solve by factoring: x² - 9x + 20 = 0

• x = -4 and x = -5

• x = 20 and x = -9

• x = 4 and x = 5

• x = -4 and x = 5

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:3x² + 5x + 2 = 0  

• x = -2/3 and x = -1

• x = -3/2 and x = -1

• x = 2/3 and x = 1

• x = 2/3 and x = -1

Tags

CCSS.HSA-REI.B.4B