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Common Core Standard HSA-REI.B.4 Questions

Solve quadratic equations in one variable.

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Grade 10 Quadratic Equations CCSS: HSA-REI.B.4
Factor the expression.
[math]9x^2 + 24x +16[/math]
  1. [math](x + 4)(9x - 1)[/math]
  2. [math](3x + 16)(3x + 1)[/math]
  3. [math](3x + 4)^2[/math]
  4. [math](3x + 8)^2[/math]
Grade 9 Quadratic Equations CCSS: HSA-REI.B.4
Grade 9 Quadratic Equations CCSS: HSA-REI.B.4
What are the solutions of [math] x^2 -3x - 40[/math]?
  1. -5 and -8
  2. -5 and 8
  3. 5 and -8
  4. 5 and 8
Grade 12 Quadratic Equations CCSS: HSA-REI.B.4
A factor of [math] 2x^2+7x-4 [/math] is:
  1. [math](2x-1)[/math]
  2. [math](2x+1)[/math]
  3. [math](x-4)[/math]
Grade 11 Quadratic Equations CCSS: HSA-REI.B.4
First, factor [math]y = 3x^2 - x - 4.[/math][math][/math]
Then, solve for the zeros of it.
  1. x = 1, x = -4/3
  2. x = - 1, x = 4/3
  3. x = - 3/4, x = - 1
  4. x = 3/4, x = 1
Grade 9 Quadratic Equations CCSS: HSA-REI.B.4
Factor this expression:
[math]x^2 -9x + 20[/math]
  1. ( x - 5)( x + 4)
  2. ( x + 5)( x - 4)
  3. ( x - 5 )( x - 4)
  4. ( x - 4)( x - 5)
Grade 11 Quadratic Equations CCSS: HSA-REI.B.4
Factor.
[math]x^2 -144[/math]
  1. [math](x+12)(x+12)[/math]
  2. [math](x+12)^2[/math]
  3. [math](x-12)(x+12)[/math]
  4. [math](x-12)^2[/math]
Grade 10 Quadratic Equations CCSS: HSA-REI.B.4
Expand [math](2x + 4 )(2-x)[/math]
  1. [math]8 - 2x^2[/math]
  2. [math]12 - 2x^2[/math]
  3. [math]8x - 2x^2[/math]
  4. [math]8 + 2x^2[/math]

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