Scomposizione n 5

Scomposizione n 5

8th Grade

13 Qs

quiz-placeholder

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Scomposizione n 5

Scomposizione n 5

Assessment

Quiz

Mathematics

8th Grade

Medium

Created by

Vanda Paganini

Used 10+ times

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13 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

La scomposizione in fattori irriducibili di:  x210x+25x^2-10x+25  è

 (x5)(x+5)\left(x-5\right)\left(x+5\right)  

 (x5)2\left(x-5\right)^2  

 (x+5)2\left(x+5\right)^2  

 (x+25)2\left(x+25\right)^2  

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

qual è la scomposizione del trinomio    x2−2x−8
(x−2)(x+4)
(x−2)(x−4)
(x+2)(x−4)
(x+2)(x+4)

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

se il polinomio P(x) si annulla per x=2, risulta cioè P(2)=0, allora il polinomio P(x) è:

divisibile per (X+2)

divisibile per (x-2)

divisibile sia per (x+2)che per(x-2)

nulla si può affermare sulla divisibilità

è divisibile per 2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 x3+8=x^3+8=  

 (x2)(x222)(x-2)(x^2-2^2)  

 (x+2)(x2+4x+4)(x+2)(x^2+4x+4)  

 (x+2)(x22x+4)(x+2)(x^2-2x+4)  

 (x+2)3(x+2)^3  

Non si può scomporre

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 x2 x  42x^2\ -x\ -\ 42  

 (x+7)(x6)\left(x+7\right)\left(x-6\right)  

 (x7)(x+6)\left(x-7\right)\left(x+6\right)  

 (x+7)(x+6)\left(x+7\right)\left(x+6\right)  

 (x7)(x6)\left(x-7\right)\left(x-6\right)  

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

quale dei seguenti quadrinomi è il cubo di un binomio?

x3+8y3+6x2y+6xy2

8a3−12a2b−6ab2−b3

27a3+27a2−9a−1

b3+6b2+12b+8

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

x2-6x+9

(x+3)(x-3)

(x+3)2

(x-3)2

(x-3)3

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