Question

Escribe tres fracciones algebraicas de igual denominador cuya suma sea la indicada

Answer 1

Respuesta:

Escribe dos fracciones algebraicas de igual denominador cuya diferencia sea indicada.

a.

2 {m}^{2} \\ 5x

b.

- 4 {x}^{2} \\ x + 5

c.

- 7 {m}^{2} {n}^{2} \\ 5 {p}^{2}

d.

11 {x}^{2} {y}^{3} \\ 3 {a}^{2}

e.

{x}^{2} - 7x - 8 \\ 3 {x}^{2} - 5x + 1

f.

5 {x}^{2} + 3x - 2 \\ 3 {x}^{2} - 8

g.

3 {x}^{2} - 5 \\ x - 3

h.

- 2 {x}^{2} + 3x - 1 \\ 2x - 9

i.

- 9 {x}^{2} - 6x - 5 \\ {x}^{2} + 2x + 2

j.

3 {x}^{2} - 5x + 4 \\ - 2 {x}^{2} + 7x - 6

Answer 2

Respuesta:

a. $\frac{1}{7x^2y} +\frac{2}{7x^2y} +\frac{-1}{7x^2y}$

b. $\frac{6}{xy^2} +\frac{2}{xy^2} +\frac{-x}{xy^2}$

c. $\frac{a^2}{6a-4} +\frac{2a^2}{6a-4} +\frac{-1}{6a-4}$

d. $\frac{y}{2y^2+3y-9} +\frac{3y}{2y^2+3y-9} +\frac{1}{2y^2+3y-9}$

Explicación paso a paso:

a. $\frac{1}{7x^2y} +\frac{2}{7x^2y} +\frac{-1}{7x^2y}=\frac{1+2+(-1)}{7x^2y}= \frac{2}{7x^2y}$

b. $\frac{6}{xy^2} +\frac{2}{xy^2} +\frac{-x}{xy^2} = \frac{6+2+(-x)}{xy^2}= \frac{8-x}{xy^2}$

c. $\frac{a^2}{6a-4} +\frac{2a^2}{6a-4} +\frac{-1}{6a-4} =\frac{a^2+2a^2-1}{6a-4}=\frac{3a^2-1}{6a-4}$

d. $\frac{y}{2y^2+3y-9} +\frac{3y}{2y^2+3y-9} +\frac{1}{2y^2+3y-9}=\frac{y+3y+1}{2y^2+3y-9} =\frac{4y+1}{2y^2+3y-9}$