( x + y )2 =
FORMULE DE CALCUL PRESCURTAT - 2
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FORMULE DE CALCUL PRESCURTAT - 2
Quiz
•
Mathematics
•
7th - 9th Grade
•
Hard
Peter Pop
Used 352+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
x2+2xy+y2
x2-2xy+y2
x2+y2
x2-y2
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
( y + 1 )2 =
y2-2y+1
y2+2y+1
y2+1
y2-1
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
( 5 + a )2 =
25+5a+a2
25-10a+a2
25+10a+a2
25-a2
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
( a + 4 )( a – 4 ) =
a2+16
a2-4
a2-8a+16
a2-16
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(√6 + √7)2 =
13+2√42
13-2√42
13
13+√42
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
( 3 – x )2 =
9+6x+x2
9-6x+x2
9-x2
9-3x+x2
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
( 0,6 + a )( 0,6 – a ) =
0,36-a2
3,6-a2
a2-0,36
36-a2
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