Quiz about 6 - Quadratwurzeln addieren und subtrahieren

Question 1

Berechne: $$2\ \sqrt[]{2}+7\ \sqrt[]{2}$$

Accepted Answer

$$9\ \sqrt[]{2}$$

Answer

18

Answer

$$9\ \sqrt[]{4}$$

Answer

$$9\ \cdot\ 2$$

Question 2

Berechne: $$3\ \sqrt[]{2}+5\ \sqrt[]{2}$$

Accepted Answer

$$8\ \sqrt[]{2}$$

Answer

$$15\ \sqrt[]{2}$$

Answer

$$35\ \sqrt[]{2}$$

Answer

$$40\ \sqrt[]{2}$$

Question 3

Berechne: $$\sqrt[]{3}+\sqrt[]{3}$$

Accepted Answer

$$2\ \sqrt[]{3}$$

Answer

$$3\ \sqrt[]{3}$$

Answer

$$4\ \sqrt[]{3}$$

Answer

$$6\ \sqrt[]{3}$$

Question 4

Berechne: $$\sqrt[]{7}+\sqrt[]{7}$$

Accepted Answer

$$2\ \sqrt[]{7}$$

Answer

$$4\ \sqrt[]{7}$$

Answer

$$6\ \sqrt[]{7}$$

Answer

$$8\ \sqrt[]{7}$$

Question 5

Berechne: $$\sqrt[]{6}+\sqrt[]{6}$$

Accepted Answer

$$2\ \sqrt[]{6}$$

Answer

$$3\ \sqrt[]{6}$$

Answer

$$4\ \sqrt[]{6}$$

Answer

$$5\ \sqrt[]{6}$$

Question 6

Berechne: $$9\ \sqrt[]{5}\ -\ 6\ \sqrt[]{5}\ -3\ \sqrt[]{5}$$

Accepted Answer

0

Answer

$$1\ \sqrt[]{5}$$

Answer

$$1\ \sqrt[]{3}$$

Answer

$$\sqrt[]{15}$$

Question 7

Berechne: $$6\ \sqrt[]{x}\ +\ 3\ \sqrt[]{x}\ -2\ \sqrt[]{x}$$

Accepted Answer

$$7\ \sqrt[]{x}$$

Answer

$$7\ \sqrt[]{3x}$$

Answer

$$-36\ \sqrt[]{x}$$

Answer

$$7\ \sqrt[]{x^3}$$

Question 8

Berechne: $$2\ \sqrt[]{3}+7\ \sqrt[]{3}$$

Accepted Answer

$$9\ \sqrt[]{3}$$

Answer

18

Answer

$$9\ \sqrt[]{9}$$

Answer

$$9\ \cdot\ 3$$

Question 9

Berechne: $$4\ \sqrt[]{5}+2\ \sqrt[]{5}$$

Accepted Answer

$$6\ \sqrt[]{5}$$

Answer

$$8\ \sqrt[]{5}$$

Answer

$$10\ \sqrt[]{5}$$

Answer

$$12\ \sqrt[]{5}$$

Question 10

Berechne: $$3\ \sqrt[]{2}+5\ \sqrt[]{2}$$

Accepted Answer

$$8\ \sqrt[]{2}$$

Answer

$$15\ \sqrt[]{2}$$

Answer

$$35\ \sqrt[]{2}$$

Answer

$$40\ \sqrt[]{2}$$

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