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Mathematics
9th
grade
Solving Quadratic Equation by Extracting Square Roots
5 questions
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- 1. Multiple Choice
Find the solutions of the equation x2 - 16 = 0 by extracting the square root.
x = 4 and x = -4
x = 4
x = -4
no answer
- 2. Multiple Choice
Find the roots of the quadratic equation 2s2 = 50.
s = 25 and s = -25
s = 5 and s = -5
s = 5 and s = 25
s = -5 and s= -25
- 3. Multiple Choice
What equation has the roots of x = 7 and x = -7?
x2 - 14 = 0
x2 - 49 = 0
x2 + 49 = 0
x2 = 14
- 4. Multiple Choice
What are the roots of the quadratic equation (s - 4)2 - 81 = 0?
s = 9/2 and s = -9/2
s = 9 and s= -9
s = 2 and s = -2
s = 13 and s = -13
- 5. Multiple Choice
What are the roots of the quadratic equation 3t2 = 12?
t =4 and t = -4
t = 2 and t = -2
t = 3 and t = -3
t = 9 and t = -9
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