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Common Core Standard HSA-REI.B.4b Questions

Solve quadratic equations by inspection (e.g., for x2 = 49), taking square roots, completing the square, the quadratic formula and factoring, as appropriate to the initial form of the equation. Recognize when the quadratic formula gives complex solutions and write them as a ± bi for real numbers a and b.

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Grade 10 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Solve:
2x2+7x+3=0
Grade 9 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
x2=-11x-10
  1. 5,2
  2. 2,9
  3. 52,23
  4. -10,-1
Grade 10 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
What are the roots of the equation?
x2-5x+6=0
  1. 2, 3
  2. 3, -2
  3. -2, -3
  4. 2, -3
Grade 10 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Solve the quadratic equation. x2-1=0
  1. x=1
  2. x=2
  3. x=-1,1
  4. x=-2,2
Grade 10 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Find the exact solutions to x2-3x+1=0 by using the Quadratic Formula.
  1. -3±√52
  2. 3±√132
  3. -3±√132
  4. 3±√52
Grade 10 Quadratic Equations and Expressions CCSS: HSN-CN.C.7, HSA-REI.B.4, HSA-REI.B.4b
Solve. 3x2-2x+4=0
Grade 9 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
What are the solutions for the quadratic equation x2+6x=16?
  1. x = -2, -8
  2. x = -2, 8
  3. x = 2, -8
  4. x = 2, 8
Grade 9 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Solve by completing the square. x2+15x=-26
Grade 9 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Solve the equation x2-2x-35=0.
  1. x=-7 and x=5
  2. x=-7 and x=-5
  3. x=7 and x=-5
  4. x=7 and x=5
Grade 10 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Solve the equation.

21x2-7x=0
Grade 10 Quadratic Equations and Expressions CCSS: HSN-CN.C.7, HSA-REI.B.4, HSA-REI.B.4b
Solve. 9x2+3x+7=0
Grade 10 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
x2+3x-3=0
  1. 0.79 and -3.79
  2. 3 and 1
  3. -3 and -1
  4. none of the above
Grade 9 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Use factoring to solve.


49k2-16=0
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