Quiz about Equações e Fatoração: Desafios 11º Ano

Question 1

Simplifique: $$4(a + 2) - 3a$$

Accepted Answer

$$a + 8$$

Answer

$$a + 2$$

Answer

$$a + 6$$

Answer

$$a + 4$$

Question 2

Resolva: $$7x + 2 = 23$$

Accepted Answer

$$x = 3$$

Answer

$$x = 2$$

Answer

$$x = 4$$

Answer

$$x = 5$$

Question 3

Simplifique: $$6x - 2x + 4$$

Accepted Answer

$$4x + 4$$

Answer

$$8x + 4$$

Answer

$$4x - 4$$

Answer

$$6x + 4$$

Question 4

Fatore: $$x^2 + 5x$$

Accepted Answer

$$x(x + 5)$$

Answer

$$(x + 5)^2$$

Answer

$$x(x - 5)$$

Answer

$$(x + 1)(x + 5)$$

Question 5

Resolva: $$3x - 4 = 2x + 1$$

Accepted Answer

$$x = 5$$

Answer

$$x = 3$$

Answer

$$x = -5$$

Answer

$$x = 1$$

Question 6

Simplifique: $$2y + 3y - y$$

Accepted Answer

$$4y$$

Answer

$$5y$$

Answer

$$3y$$

Answer

$$2y$$

Question 7

Fatore: $$a^2 - 4a$$

Accepted Answer

$$a(a - 4)$$

Answer

$$(a - 2)^2$$

Answer

$$a(a + 4)$$

Answer

$$(a - 4)(a + 4)$$

Question 8

Resolva: $$x + 7 = 2x - 5$$

Accepted Answer

$$x = 12$$

Answer

$$x = -12$$

Answer

$$x = 7$$

Answer

$$x = -7$$

Question 9

Simplifique: $$5x - 3x + 2$$

Accepted Answer

$$2x + 2$$

Answer

$$8x + 2$$

Answer

$$2x - 2$$

Answer

$$5x + 2$$

Question 10

Fatore: $$x^2 - 4x + 4$$

Accepted Answer

$$(x - 2)^2$$

Answer

$$(x + 2)^2$$

Answer

$$(x - 4)(x + 1)$$

Answer

$$x(x - 4)$$

Question 11

Resolva: $$4x - 3 = 2x + 5$$

Accepted Answer

$$x = 4$$

Answer

$$x = 2$$

Answer

$$x = -4$$

Answer

$$x = 1$$

Question 12

Simplifique: $$7a - 2a + 3$$

Accepted Answer

$$5a + 3$$

Answer

$$9a + 3$$

Answer

$$5a - 3$$

Answer

$$7a + 3$$

Question 13

Fatore: $$3x^2 - 12x$$

Accepted Answer

$$3x(x - 4)$$

Answer

$$x(x - 12)$$

Answer

$$3(x - 4)$$

Answer

$$x^2(x - 4)$$

Question 14

Resolva: $$2x + 9 = 5x - 6$$

Accepted Answer

$$x = 5$$

Answer

$$x = 3$$

Answer

$$x = -5$$

Answer

$$x = -3$$

Question 15

Simplifique: $$8x - 3x + 7$$

Accepted Answer

$$5x + 7$$

Answer

$$11x + 7$$

Answer

$$5x - 7$$

Answer

$$8x + 7$$

Question 16

Fatore: $$y^2 - 16$$

Accepted Answer

$$(y - 4)(y + 4)$$

Answer

$$(y - 8)(y + 2)$$

Answer

$$y(y - 16)$$

Answer

$$(y - 2)(y + 8)$$

Question 17

Resolva: $$6x - 2 = 4x + 8$$

Accepted Answer

$$x = 5$$

Answer

$$x = 2$$

Answer

$$x = -5$$

Answer

$$x = -2$$

Question 18

Simplifique: $$9a + 2a - 4$$

Accepted Answer

$$11a - 4$$

Answer

$$7a - 4$$

Answer

$$11a + 4$$

Answer

$$9a - 4$$

Question 19

Fatore: $$x^2 - 25$$

Accepted Answer

$$(x - 5)(x + 5)$$

Answer

$$(x - 25)(x + 1)$$

Answer

$$x(x - 25)$$

Answer

$$(x - 1)(x + 25)$$

Question 20

Resolva: $$x - 8 = 3x + 4$$

Accepted Answer

$$x = -6$$

Answer

$$x = 6$$

Answer

$$x = -4$$

Answer

$$x = 4$$

Question 21

Simplifique: $$10x - 4x + 6$$

Accepted Answer

$$6x + 6$$

Answer

$$14x + 6$$

Answer

$$6x - 6$$

Answer

$$10x + 6$$

Question 22

Fatore: $$5x^2 - 20x$$

Accepted Answer

$$5x(x - 4)$$

Answer

$$x(x - 20)$$

Answer

$$5(x - 4)$$

Answer

$$x^2(x - 4)$$

Question 23

Resolva: $$3x + 2 = 8$$

Accepted Answer

$$x = 2$$

Answer

$$x = 3$$

Answer

$$x = 4$$

Answer

$$x = 5$$

Question 24

Simplifique: $$12y - 7y + 5$$

Accepted Answer

$$5y + 5$$

Answer

$$19y + 5$$

Answer

$$5y - 5$$

Answer

$$12y + 5$$

Question 25

Fatore: $$a^2 - 36$$

Accepted Answer

$$(a - 6)(a + 6)$$

Answer

$$(a - 36)(a + 1)$$

Answer

$$a(a - 36)$$

Answer

$$(a - 1)(a + 36)$$

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