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9th Grade
•5 Qs
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Ταυτότητες
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Medium
Eirini Samaritaki
Used 2+ times
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5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(a2 - b)2 =
a3 -2ab + b2
a4 + 2ab + b2
a2 - 2ab + b2
a4 - 2ab + b2
Answer explanation
(a2 - b)2 = (a2)2 - 2ab + b2 = a4 - 2ab + b2
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
(a + b)3 = a3 + 3a2b + ... + b3
3ab
3ab2
2ab2
3a2b
Answer explanation
It is what it is 🙂
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Η ταυτότητα a2 - b2 = (a + b)(a - b) λέγεται
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(2x - y3)(2x + y3) =
4x - y6
4x2 - y6
4x2 - y2
4x2 - y5
Answer explanation
(2x - y3)(2x + y3) = (2x)2 - (y3)2 = 4x2 - y6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
x2 + 2x + 4
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