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Calcul algebric

Authored by PETRIUC IRINA-NICULINA

Mathematics

8th Grade

CCSS covered

Used 1K+ times

Calcul algebric
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calculați  2x+6+3x8=2x+6+3x-8=  

 5x25x-2  

 x2x-2  

 5x65x-6  

 5x+85x+8  

Tags

CCSS.7.EE.A.1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rezultatul calculului 3x∙(2x – 3) este

5x2 + 9x

5x2 - 9x

6x2 - 9x

-6x2 + 9x

Tags

CCSS.HSA.APR.A.1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rezultatul calculului a3 - b3 este ...

(a-b)(a2+ab+b2)

(a+b)(a2+ab+b2)

(a+b)(a2-ab+b2)

(a-b)(a2-ab-b2)

Tags

CCSS.HSA.APR.C.4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rezultatul (4x – 1)2 este ...

16x2 -1

16x2 -8x + 1

16x2 + 1

16x2 -8x + 2

Tags

CCSS.HSA.APR.C.4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Completeaza spatiul liber:  (6t+.....)2=....+12t+1\left(6t+.....\right)^2=....+12t+1  

 1 si 36t21\ si\ 36t^2  

 36t si 136t\ si\ 1  

 6t2 si 26t^2\ si\ 2  

 6t2 si 1\sqrt{6}t^2\ si\ 1  

Tags

CCSS.HSA.APR.C.4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ce lipsește din egalitatea?
 (a2+3x+b)2=a4+... +b2+6a2x+... +2a2b2\left(a^2+3x+b\right)^2=a^4+...\ +b^2+6a^2x+...\ +2a^2b^2  

 3x23x^2  și 3xb3xb  

 9x29x^2  și  6xb6xb  

 6x6x  și 9xb9xb  

 6x26x^2  și  3x23x^2  

Tags

CCSS.HSA.APR.C.5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Valoarea de adevar a propozitiei " (x5)(x+5)=x225\left(x-\sqrt{5}\right)\left(x+\sqrt{5}\right)=x^2-25  " este ...

ADEVARAT

FALS

Tags

CCSS.HSA.APR.C.4

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