
formule de calcul
Authored by lili botez
Mathematics
7th - 8th Grade
Used 22+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
( x+3)2=
x2+9
x2+6x+9
x2-6x+9
x2+6x+3
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(x-5)2=
x2-10x+25
x2+25
x2+10x+25
x2-25
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(y-1)2=
y2+2y+1
y2-2y+1
y2+2y
y2-1
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
( a+2x)2=
x2+4ax+4a2
a2-4ax-4x2
a2+4ax+4x2
a2+2ax+2x2
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(x+0,2)2=
x2+4
x2+0,4x+4
x2+0,4x+0,4
x2+0,2x+0,2
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(x-1/2)2=
x2+1/4
x2+0,4x+4
x2+1/4x+1/4
x2-x+0,25
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(5-n)2=
5-10n+n2
25+10n+n2
25-10n+n2
2,5-5n+n2
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