Scomposizioni

Scomposizioni

9th Grade

20 Qs

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Solving systems of equations by substitution_1

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Scomposizioni

Scomposizioni

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

Created by

Gabriella Maiorano

Used 228+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

La scomposizione del polinomio

3ax-a-3x+1=

è:

3x(a-1)

(a-1)(3x-1)

(3x-1)(a+1)

(a+1)(3x+1)

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 ax+2bx +ay+2by =ax+2bx\ +ay+2by\ =  

 (a+2x)(b+2y)\left(a+2x\right)\left(b+2y\right)  

 (a+b)(2x+y)(a+b)(2x+y)  

 (ax+ay)[2b(x+y)](ax+ay)[2b(x+y)]  

 (a+2b)(x+y)(a+2b)(x+y)  

 a(x+2b+y+2by)a(x+2b+y+2by)  

3.

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\ }  

4.

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)  

5.

MULTIPLE CHOICE QUESTION

2 mins • 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

6.

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)  

7.

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)

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