What are the roots of the quadratic equation 3t2 = 12?
Solving Quadratic Equations by Extracting Square Roots

Quiz
•
Mathematics
•
9th Grade
•
Hard
Anthony Clark
FREE Resource
16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
t =4 and t = -4
t = 2 and t = -2
t = 3 and t = -3
t = 9 and t = -9
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the solution of the equation a2 – 60 = 21?
positive or negative 4
positive or negative 6
positive or negative 7
positive or negative 9
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following quadratic equations can be solved easily by extracting the square roots?
x2 + 7x +12 = 0
2w2 + 7w - 3 = 0
3v2 + 2v - 8 = 0
4t2 - 9 = 0
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve for the roots of the quadratic equation.
x2 = 49
±5
±7
±8
±9
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve for the roots of the quadratic equation.
x2 = 18
±3
±6
±3√2
±2√3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve for the roots of the quadratic equation.
x2 = 36
±3
±4
±6
±9
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve for the roots of the quadratic equation.
x2 = 81
±6
±7
±8
±9
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