Formule de calcul prescurtat

Formule de calcul prescurtat

7th Grade

10 Qs

quiz-placeholder

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Formule de calcul prescurtat

Formule de calcul prescurtat

Assessment

Quiz

Mathematics

7th Grade

Medium

Created by

Agurita Necula

Used 16+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

( x + y )2 =

x2+y2

x2-2xy+y2

x2-y2

x2+2xy+y2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

( 5 + a )=

25+5a+a2

25+10a+a2

25-10a+a2

25-a2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 ( y + 1 )=

y2-1

Show answersExplanationPreviousNext

y2+1

y2-2y+1

y2+2y+1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

(√6 + √7)2 =

13+2√42

13-2√42

13

13+√42

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

( a + 4 )( a – 4 ) =

a2+16

a2-16

a2-4

a2-8a+16

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

( 3 – x )2 =

9+6x+x2

9-6x+x2

9-x2

9-3x+x2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

( 0,6 + a )( 0,6 – a ) =

0,36-a2

a2-0,36

36-a2

3,6-a2

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