Quiz about Matemáticas II U2

Question 1

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

Accepted Answer

$$x^2-4x+4$$

Answer

$$x^{2\ }+2x+2$$

Answer

$$x^2+4x+4$$

Answer

$$x^{2\ }-4x-4$$

Question 2

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

Accepted Answer

$$x^2-1$$

Answer

$$x^2$$

Answer

$$x^2+1$$

Answer

$$x^2-0$$

Question 3

$$\left(3x+5\right)^2$$

Accepted Answer

$$9x^2-30x+25$$

Answer

$$9x^2-30x-25$$

Answer

$$3x^2-30x+25$$

Answer

$$3x^2-30x-25$$

Question 4

Factorice: $$x^2-9y^4$$

Accepted Answer

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

Answer

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

Answer

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

Answer

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

Question 5

Factorice: $$\frac{25x^2}{49}-\frac{1}{p^6q^4}$$

Accepted Answer

$$\left(\frac{5x}{7}+\frac{1}{p^3q^2}\right)\left(\frac{5x}{7}-\frac{1}{p^3q^2}\right)$$

Answer

$$\left(\frac{5x}{9}+\frac{1}{p^3q^2}\right)\left(\frac{5x}{9}-\frac{1}{p^3q^2}\right)$$

Answer

$$\left(\frac{5x}{7}+\frac{1}{p^2q^3}\right)\left(\frac{5x}{7}-\frac{1}{p^2q^3}\right)$$

Answer

$$\left(\frac{5x}{7}+\frac{0.5}{p^3q^2}\right)\left(\frac{5x}{7}-\frac{0.5}{p^3q^2}\right)$$

Question 6

Factorizar: 5x² + 7x³ -3x⁴

Accepted Answer

$$x^{2\ }(5+7x-3x^2)$$

Answer

$$x^{2\ }(5x-7x-3x^2)$$

Answer

$$5x\ \left(x+7x-3x)\right)$$

Answer

$$x\ (5x+7x-3x^3)$$

Question 7

Factoriza: 15ab+30a-45

Accepted Answer

$$15\ (ab+2a-3)$$

Answer

$$15\ (ab+2-3)$$

Answer

$$15a\ (b+2-3)$$

Answer

$$ab\ \left(15+30-45)\right)$$

Question 8

Factorice: $$x^2-7x+12$$

Accepted Answer

(x-3)(x-4)

Answer

(x-5)(x-2)

Answer

(x+3)(x-4)

Answer

(x-6)(x-2)

Question 9

Factorice: $$m^2+12m+11$$

Accepted Answer

(m +11) (m + 1)

Answer

(m +12) (m + 1)

Answer

(m-11) (m-1)

Answer

(m+6)(m+5)

Question 10

Factorice: $$a^2+7a+6$$

Accepted Answer

(a+6)(a+1)

Answer

(a-6)(a-1)

Answer

(a+3)(a+2)

Answer

(a+3)(a-2)

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