Radical Equations and Perfect Squares
Authored by Anthony Clark
Mathematics
7th Grade
CCSS covered
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by using the best method (factoring, completing the square, or taking square roots):
3x2+12=39
x = √27
x = ±3√27
x = ±3
x = ±9
Tags
CCSS.HSA-REI.B.4B
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by taking square roots:
5b2 - 4 = 41
b = 9, b = -9
b = 3, b = -3
b = 8, b = -8
no solution
Tags
CCSS.HSA-REI.B.4B
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
What value of n would guarantee that the answer to the given equation was a pair of radicals (not integer)?
0
24
32
-16
Tags
CCSS.HSA-REI.B.4B
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Complete the square: x²-20x+22
(x-10)²-78
(x+10)²-87
(x+10)²-125
(x-10)²+55
Tags
CCSS.HSA-REI.B.4B
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
To solve by completing the square, what needs to be moved in this equation?
x2 = 9 - 4x
the -4x
the 9
the x2
Tags
CCSS.HSA-REI.B.4B
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
none of these
Tags
CCSS.HSA-REI.B.4B
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Simplify the following radical: √24
2√6
4√6
2√12
3√8
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