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Polinoame. Forma algebrică

Authored by STAN ADRIAN

Mathematics

12th Grade

Used 9+ times

Polinoame. Forma algebrică
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Se consideră polinomul 

 f(x)=3x24x5f\left(x\right)=3x^2-4x-5  Gradul lui f (x) este ....

3

2

1

0

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Forma algebrică a polinomului

 f(x)=(1x2)(2+3x)f\left(x\right)=\left(1-x^2\right)\cdot\left(2+3x^{ }\right)  este ......

 x32x2+3x2-x^3-2x^2+3x-2  

 

 -3x^3-2x^2+3x+2
 

  2x33x2+3x2-2x^3-3x^2+3x-2 

  3x2+2x2+x+2-3x^2+2x^2+x+2 

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 f(x)=(2m6)x3+(4m2)x25x+3f\left(x\right)=\left(2m-6\right)x^3+\left(4m-2\right)x^2-5x+3  

Dacă polinomul f(x) are gradul doi atunci m= ......

1

2

3

4

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 f(x)=3x(2p8)4x+3f\left(x\right)=3x^{\left(2p-8\right)}-4x+3  

Polinomul f(x) are gradul doi dacă și numai dacă  p=.......

2

3

4

5

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Dacă polinoamele  f(x)=3x46x2+8x2f\left(x\right)=3x^4-6x^2+8x-2  și  g(x)=(m3)x4+(n2)x3+(p4)x28x2g\left(x\right)=\left(m-3\right)x^4+\left(n-2\right)x^3+\left(p-4\right)x^2-8x-2  

atunci n= .........,  p= ............

n=2,  p=2

n= -2,  p = -2

n=2,   p= - 2

n=-2,  p= 4

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Fie  f(x)=2x33x2+4x2f\left(x\right)=2x^3-3x^2+4x-2   Atunci  f(-1) este egal cu ......

-9

-11

-3

7

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Fie  f(x)=4x32x210x+20f\left(x\right)=4x^3-2x^2-10x+20 . Rădăcină a polinomului f(x) este numărul 

-1

-2

1

2

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