Solving Quadratic Equation

What are the roots of quadratic equations (x-4)(2x+1)?

• • -4 and 1/2

• 4 and 2

• 4 and -1/2

• -4 and -2

Tags

CCSS.HSA-REI.B.4B

1.     What is the quadratic equation in standard form if a=2 b=5 c=10

• 2x^2 + 5x + 10 = 1
• 2x^2 + 5x + 10 = 0
• 2x^2 + 5x + 10 = 5
• 2x^2 + 5x + 10 = 15

1.      What will you add to the equation to make this perfect square trinomial?  2x²+4x+ _____

• 1

• 10
• 8
• 6

Tags

CCSS.HSA-REI.B.4B

What are the roots of 2y²+2=100

• y = 7, -7
• y = 3, -3
• y = 5, -5
• y = 10, -10

Tags

CCSS.8.EE.A.2

What is the standard form of (x+1) (x+2)?

• x² + 3x + 2

• x² + 2x + 1

• x² + 4x + 2

• x² + 3x + 3

Tags

CCSS.HSA.APR.A.1

What is the standard form of (2x+3)² ?

• 4x² + 6x + 9

• 4x² + 6x + 3

• 4x² + 12x + 9

• 4x² + 9

Tags

CCSS.HSA.APR.C.4

Tags

CCSS.HSA.APR.B.3

• 40
• 10
• 20
• -40

Tags

CCSS.HSA-REI.B.4B

• y = 10, y = -10
• y = 7, y = -7
• y = 3, y = -3
• y = 5, y = -5

Tags

CCSS.HSA-REI.B.4B

1.      Which of the following quadratic equations is written in the standard form?

• 3x + 4x² = 1

• 2x = 5x²- 1

• x²+3x-9=0

• x² + 2x + 3