Quiz about Algebra - multiplikation med parenteser

Question 1

Skriv uttrycket utan parentes.

$$3\left(a+b\right)$$

Accepted Answer

$$3a+3b$$

Answer

$$3a+b$$

Answer

$$a+3b$$

Answer

$$3+a+b$$

Question 2

Skriv uttrycket utan parentes.

$$6\left(a-b\right)$$

Accepted Answer

$$6a-6b$$

Answer

$$6a-b$$

Answer

$$a-6b$$

Answer

$$3-a-b$$

Question 3

Skriv uttrycket utan parentes.

$$7\left(x+3\right)$$

Accepted Answer

$$7x+21$$

Answer

$$7x+3$$

Answer

$$7x+10$$

Answer

$$x+10$$

Question 4

Skriv uttrycket utan parentes.

$$2\left(8-x\right)$$

Accepted Answer

$$16-2x$$

Answer

$$16-x$$

Answer

$$10-2x$$

Answer

$$10-x$$

Question 5

Skriv uttrycket utan parentes.

$$x\left(x+3\right)$$

Accepted Answer

$$x^2+3x$$

Answer

$$2x+3$$

Answer

$$5x$$

Answer

$$x^2+3$$

Question 6

Skriv uttrycket utan parentes.

$$y\left(4-y\right)$$

Accepted Answer

$$4y-y^2$$

Answer

$$3y$$

Answer

$$4-y^2$$

Answer

$$4-2y$$

Question 7

Skriv uttrycket utan parentes.

$$2x\left(3+x\right)$$

Accepted Answer

$$6x+2x^2$$

Answer

$$7x$$

Answer

$$6x^2$$

Answer

$$6+2x^2$$

Question 8

Skriv uttrycket utan parentes.

$$4a\left(1-3a\right)$$

Accepted Answer

$$4a-12a^2$$

Answer

$$a$$

Answer

$$1-a$$

Answer

$$4-12a^2$$

Question 9

Skriv uttrycket utan parenteser.

$$\left(2+x\right)\left(3+y\right)$$

Accepted Answer

$$6+2y+3x+xy$$

Answer

$$5+x+y$$

Answer

$$6+xy$$

Answer

$$5+xy$$

Question 10

Skriv uttrycket utan parenteser.

$$\left(2+x\right)\left(3-y\right)$$

Accepted Answer

$$6-2y+3x-xy$$

Answer

$$5+x-y$$

Answer

$$6-xy$$

Answer

$$5-xy$$

Question 11

Skriv uttrycket utan parenteser.

$$\left(x-2\right)\left(3+y\right)$$

Accepted Answer

$$3x+xy-6-2y$$

Answer

$$x+1-y$$

Answer

$$xy-6$$

Answer

$$xy+1$$

Question 12

Skriv uttrycket utan parenteser.

$$\left(a+5\right)\left(3+a\right)$$

Accepted Answer

$$3a+a^2+15+5a$$

Accepted Answer

$$a^2+8a+15$$

Answer

$$2a+8$$

Answer

$$a^2+8$$

Question 13

Skriv uttrycket utan parenteser.

$$\left(2+a\right)\left(6+b\right)$$

Accepted Answer

$$12+2b+6a+ab$$

Answer

$$8+a+b$$

Answer

$$8+ab$$

Answer

$$a^2+8a+15$$

Question 14

Skriv uttrycket utan parenteser.

$$\left(a-b\right)\left(b+a\right)$$

Accepted Answer

$$ab+a^2-b^2-ab$$

Accepted Answer

$$a^2-b^2$$

Answer

$$2a$$

Answer

$$2a-2b$$

Algebra - multiplikation med parenteser

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