
FORMULE DE CALCUL PRESCURTAT - 3
Authored by Peter Pop
Mathematics
7th - 8th Grade
Used 94+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(2 - 3x)(3x + 2) = ... .
4-9x2
9x2-4
4-12x+x2
4-12x+9x2
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(5a2b - 6ab2)(5a2b + 6ab2) = ... .
25a2b2-36a2b2
25a4b2-36a2b4
25a2b4-36a4b2
25a4b1-36a2b1
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(√2 + 2a)2 = ... .
4a2+2√2a+2
2a2+4√2a+2
4a2+4√2a+2
2+4√2a+a2
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(8 - 3y2)2 = ... .
64-48y2+9y8
64-48y+9y4
16-48y2+9y4
64-48y2+9y4
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(1 + x)(1 - x)(x2 + 1) = ... .
1-x4
1-x2
x4-1
x2-1
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(x + 4)(x - 4)(x2 - 16) = ... .
x2-256
x4-256
x4-196
x4-16
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(2√3 - 3√2)(2√3 + 3√2) = ... .
0
8
6
-6
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