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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 9 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Solve for x.
x2+x=12
  1. 6, -2
  2. -3, -4
  3. -4, 3
  4. -2, 6
Grade 10 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Find the solution of the following: x2+5=32.
  1. x=±9√6
  2. x=±3√3
  3. x=±√32
  4. x=±3√6
Grade 11 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Find the roots. x2+8x+12=0
  1. 2, -6
  2. -2, 6
  3. -2, -6
  4. 2, 6
Grade 10 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Solve the equation.

x2-7x+14=2
Grade 10 Quadratic Equations and Expressions CCSS: HSN-CN.C.7, HSA-REI.B.4, HSA-REI.B.4b
Solve.
4x2+38=2
Grade 10 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Solve:
x2-5x-6=0
Grade 9 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
x2+x-6=0
  1. 4,-1
  2. 3,-2
  3. -6,1
  4. 2,-3
Grade 9 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Solve the equation. 2x2-17x+35=0
Grade 10 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Determine the solutions of x2-14x+49=48.
  1. -7±4√3
  2. -7±16√3
  3. 7±4√3
  4. 7±16√3
Grade 11 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Find the roots. x2+10x-11=0
  1. 1, -11
  2. -1, 11
  3. 1, 11
  4. -1, -11
Grade 10 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Solve the equation.

x2+10x+25=0
Grade 10 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Solve.
3x+1=5x2
Grade 10 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Solve:
x2+14x=15
Grade 9 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
2x2-x-3=0
  1. 3,-1
  2. -1,32
  3. -1,3
  4. 12,3
Grade 10 Quadratic Equations and Expressions CCSS: HSN-CN.C.7, HSA-REI.B.4, HSA-REI.B.4b
The solutions of x2+6x+10=0 are which of the following?
  1. x=-4,x=-22
  2. x=2,x=4
  3. x=-3±i
  4. x=3±i
Grade 11 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Find the roots. -2x2+6x+56=0
  1. 4, 7
  2. -4, -7
  3. -4, 7
  4. 4, -7
Grade 10 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Solve the equation.

(x+6)(x-4)=0
Grade 10 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Which quadratic equation has roots -2 and 3?
  1. x2+x+6=0
  2. x2-x-6=0
  3. x2-6x+1=0
  4. x2+x-6=0
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