Scomposizioni polinomi

Scomposizioni polinomi

9th Grade

17 Qs

quiz-placeholder

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Scomposizioni polinomi

Scomposizioni polinomi

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

Created by

Simona de Tomasi

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17 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Qual è la corretta scomposizione in fattori di (49x2 94y2)\left(\frac{4}{9}x^2−\ \frac{9}{4}y^2\right)  

 (49x  94y)(49x+94y)\left(\frac{4}{9}x\ −\ \frac{9}{4}y\right)\left(\frac{4}{9}x+\frac{9}{4}y\right)  

 49(xy)(x+y)\frac{4}{9}(x−y)(x+y)  

 (23x  32y)(23x+32y)\left(\frac{2}{3}x\ −\ \frac{3}{2}y\right)\left(\frac{2}{3}x+\frac{3}{2}y\right)  

 14(2x+3x)(2x3y)\frac{1}{4}(2x+3x)(2x−3y)  

 (23x 32y)2 \left(\frac{2}{3}x−\ \frac{3}{2}y\right)^{2\ }  

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Scomponi in fattori

 x3xa2x^3-xa^2  

 (x2a)(x2+a)(x^2−a)(x^2+a)  

 x2(xa)(x+a)x^2(x−a)(x+a)  

 x(xa)(x+a)x(x−a)(x+a)  

 x(x2+a2)x\left(x^2+a^2\right)  

 (a2x2)(a+x)\left(a^2−x^2\right)\left(a+x\right)  

3.

MULTIPLE CHOICE QUESTION

2 mins • 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)  

4.

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)

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Tra i seguenti polinomi solo uno è lo sviluppo di un quadrato di binomio. Quale?

x 2 + x - 1

x 2 +4 x +2

9x 2 + 6x - 1

4x 2 - 12x +9

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

1. Quale dei seguenti polinomi è irriducibile?

9-x2

8-x3

x4+32

16-x4

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

quale dei seguenti binomi non è la differenza di due quadrati ?

−a4+1
9a2−1
-a4−4
a6−1

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