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Authored by Eduard Šmíd
Mathematics
8th Grade
Used 50+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(x + 10)2 =
x2 + 100
x2 - 100
x2 + 20x + 100
x2 + 2x + 10
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(y2 + 1)2 =
2y2 + 1
2y2 + 2
y4 + 2y2 + 1
y4 + y2 + 1
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(a2 + 0,1)2 =
a4 + 0,2
a4 + 0,2a2 + 0,1
a4 + 0,2a2 + 0,01
a4 + 0,01
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(m2 + n2)2 =
m4 + n4
m2 + 2mn + n2
m4 + 2m2n2 + n4
m4 + 2mn + n4
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(5ab - c)2 =
5a2b2 - 10abc + c2
25a2b2 - 10abc + c2
25a2b2 + 10abc + c2
25a2b2 - c2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(3 - 5n)2 =
9 - 30n + 25n2
9 - 25n2
9 - 30n + 5n2
9 - 15n + 25n2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(x3 - 1)2 =
x6 - 1
x6 - 6
x6 - 2x3 + 1
x5 - 2x3 + 1
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