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Ninth Grade (Grade 9) Quadratic Equations and Expressions Questions

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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 9 Quadratic Equations and Expressions
If s=-8,s2-3s=
  1. -88
  2. -40
  3. 40
  4. 88
Grade 9 Quadratic Equations and Expressions
Expand and simplify.
(x-5)(x+6)
  1. x2-1x+30
  2. x2+11x-30
  3. x2+x-30
  4. x2-11x-30
Grade 9 Quadratic Equations and Expressions CCSS: HSA-APR.A.1
Subtract. (7a2-3a)-(5a2-5a)
  1. 2a2-8a
  2. 2a2+2a
  3. 4
  4. 12a2-8a
Grade 9 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Solve for x if x2+2x+1=0.
  1. 1
  2. -1
  3. 2
Grade 9 Quadratic Equations and Expressions CCSS: HSA-SSE.B.3, HSA-SSE.B.3a
Factor the expression.
x2-10x+16
  1. (x-8)(x-2)
  2. (x-4)(x-4)
  3. (x-8)(x+2)
  4. (x+8)(x-2)
Grade 9 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Solve for x if x2+9x+18=0.
  1. 3 and 6
  2. -3 and -6
  3. -3 and 6
Grade 9 Quadratic Equations and Expressions
What are the roots of the equation (x-2)(x+5)=0?
  1. 2 and 5
  2. 2 and -5
  3. -2 and -5
  4. -2 and 5
Grade 9 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
If 2x2-8x+4=0,x=
  1. -2±√2
  2. -2±2√2
  3. 2±√2
  4. 2±2√2
Grade 9 Quadratic Equations and Expressions
Which equation represents the graph?
Graph - Quadratic Function y=2x^2
  1. y=x
  2. y=x2
  3. y=-x
  4. y=-x2
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 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
Find the solution of the following equation.

x2-3x-40=0
  1. x = -5, -8
  2. x = -5, 8
  3. x = 5, -8
  4. x = 5, 8
Grade 9 Quadratic Equations and Expressions
Which equation represents the graph of the parabola?
Graph - Quadratic Function y=-x^2
  1. y=-x2
  2. y=x2
  3. y=-x22
  4. y=x22
Grade 9 Quadratic Equations and Expressions
x+2x2-3=4x+x2+2 is equivalent to which of the following?
  1. 3x2-x+5=0
  2. x2-3x=5
  3. x2-5=-3x
  4. x2-5=3x
Grade 9 Quadratic Equations and Expressions
x2-5x+2=0
  1. 92,12
  2. 3,2
  3. -12,-92
  4. 5±√172
Grade 9 Quadratic Equations and Expressions CCSS: HSA-REI.B.4, HSA-REI.B.4b
Solve for x if x2-2x-35=0.
  1. -5 and 7
  2. -7 and 5
  3. 5 and 7
Grade 9 Quadratic Equations and Expressions
Which of the following is NOT a quadratic equation?
  1. x2-4=0
  2. -9+x2=0
  3. -7x+12=0
  4. -2+9x+x2=0
Grade 9 Quadratic Equations and Expressions
Which equation represents the graph of the parabola?
Graph - Quadratic Function y=1/2x^2
  1. y=12x
  2. y=-12x
  3. y=12x2
  4. y=-12x2
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