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Descompuneri in factori(cu formule de calcul prescurtat) -PH

Authored by LEONARD COTAC

Mathematics

8th Grade

Used 13+ times

Descompuneri in factori(cu formule de calcul prescurtat) -PH
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16 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Descompunand 4x2+12x+9 veti obtine:

(2x+1)2

(3x+1)2

(2x+3)2

(2x+3(2x-3)

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Descompunad 25x2-40x+16 veti obtine:

(5x-8)2

(5x-4)2

(5x-2)2

(5x-4)(5x+4)

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Restrângeți x2+8x+16x^2+8x+16   

 (x+4)2\left(x+4\right)^2  

 (x+8)2\left(x+8\right)^2  

 (x+2)2\left(x+2\right)^2  

 (x+16)2\left(x+16\right)^2  

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Restrângeți 4x2+12x+94x^2+12x+9   

 (2x+3)2\left(2x+3\right)^2  

 (4x+3)2\left(4x+3\right)^2  

 (2x+6)2\left(2x+6\right)^2  

 (2x+9)2\left(2x+9\right)^2  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Descompunand x2 + 12x + 36 veti obtine: 

(x + 12)2

(x - 6)2

(x + 6)2

(x+6)(x6)\left(x+6\right)\left(x-6\right)

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 Descompuneti 16a225b2Descompuneti\ 16a^2-25b^2  

(4a +5b)(4a - 5b)

(5a - 4b)(5a + 4b)

(16a - 25b)(16a +25b)

 (4a+5b)2\left(4a+5b\right)^2  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 Descompunand   81x249  veti obtine: Descompunand\ \ \ 81x^2-49\ \ veti\ obtine:\   

(9x-7)(9x+7)

(3x+7)(3x-7)

(9x+8)(9x-8)

 (9x7)2\left(9x-7\right)^2  

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