Casos notáveis

Casos notáveis

8th Grade

8 Qs

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Casos notáveis

Casos notáveis

Assessment

Quiz

Mathematics

8th Grade

Hard

Created by

isabel Seabra

Used 17+ times

FREE Resource

8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Qual dos seguintes polinómios é equivalente à expressão 

 (x+2)2\left(x+2\right)^2  

 x2+4x+4x^2+4x+4  

 x2+4x^2+4  

 x2+x+2x^2+x+2  

 x24x+4x^2-4x+4  

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 (x4)2\left(x-4\right)^2  

Qual dos seguintes polinómios é equivalente à expressão

 x28x+16x^2-8x+16  

 x216x^2-16  

 x2+8x16x^2+8x-16  

 x28x+8x^2-8x+8  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (x1)(x+1)\left(x-1\right)\left(x+1\right)  

A expressão

 x21x^2-1  

 x2+1x^2+1  

 x2+2x+1x^2+2x+1  

 x22x+1x^2-2x+1  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 (3x4)(3x+4)\left(3x-4\right)\left(3x+4\right)  

A expressão

 9x2169x^2-16  

 6x286x^2-8  

 9x26x+89x^2-6x+8  

 6x2+12x+166x^2+12x+16  

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 x+3yx+3y  

Qual das expressões algébricas representa a área de um quadrado cujo lado mede

 x2+6xy+9y2x^2+6xy+9y^2  

 x2+9y2x^2+9y^2  

 x2+3xy+6y2x^2+3xy+6y^2  

 4x+12y4x+12y  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 (x3)2+8x\left(x-3\right)^2+8x  

Qual das expressões seguintes é equivalente a

 x2+2x+9x^2+2x+9  

 x2+8x+9x^2+8x+9  

 x2+14x9x^2+14x-9  

 x2+8x9x^2+8x-9  

7.

MULTIPLE SELECT QUESTION

1 min • 1 pt

 16x2  16-x^2\ \   é igual a ...

 (4x)(4+x)\left(4-x\right)\left(4+x\right)  

 (16x)2\left(16-x\right)^2  

 (16x)(16+x)\left(16-x\right)\left(16+x\right)  

 (x4)(x+4)\left(x-4\right)\left(x+4\right)  

8.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A expressão (2x12)2\left(2x-\frac{1}{2}\right)^2  , na forma de polinómio reduzido, pode ser representado por:


 4x22x+144x^2-2x+\frac{1}{4}  

 4x2144x^2-\frac{1}{4}  

 4x22x+124x^2-2x+\frac{1}{2}  

 2x2x+142x^2-x+\frac{1}{4}