Quiz about operazioni facili con i monomi

Question 1

$$3x^2+4x^2=$$

Accepted Answer

$$7x^2$$

Answer

$$7x^4$$

Answer

$$-x^4$$

Question 2

$$5x-\left(-3x\right)=$$

Accepted Answer

$$8x$$

Answer

$$2x$$

Answer

$$-2x$$

Question 3

$$5x^3\cdot\left(-2x^3\right)=$$

Accepted Answer

$$-10x^6$$

Answer

$$3x^3$$

Answer

$$-10x^3$$

Question 4

$$\left(8x\right)^2=$$

Accepted Answer

$$64x^2$$

Answer

$$8x^2$$

Answer

$$64x$$

Question 5

Semplificando l'espressione $$5x-7-8x$$ si ottiene

Accepted Answer

$$-3x-7$$

Answer

$$-3x^2-7$$

Answer

$$-10x$$

Question 6

Semplificando l'espressione $$3x^2+\left(-5x\right)$$ si ottiene

Accepted Answer

$$3x^2-5x$$

Answer

$$3x^2+5x$$

Answer

$$-2x^2$$

Question 7

Semplificando l'espressione $$-15x^3-\left(-6x^3\right)$$ si ottiene

Accepted Answer

$$-9x^3$$

Answer

$$-21x^3$$

Answer

$$9x^3$$

Question 8

Semplificando l'espressione $$7a-3a\cdot\ 2a$$ si ottiene

Accepted Answer

$$7a-6a^2$$

Answer

$$8a$$

Answer

$$8a^2$$

Question 9

$$10x^3:\left(-2x^{ }\right)=$$

Accepted Answer

$$-5x^2$$

Answer

$$3x^2$$

Answer

$$-8x^4$$

operazioni facili con i monomi