jessej1203 jessej1203
  • 10-02-2019
  • Mathematics
contestada


[tex] \frac{x + 2}{ {x}^{2} - 9 } \times \frac{x + 3}{ {x}^{2} - 4 } [/tex]
​

tex fracx 2 x2 9 times fracx 3 x2 4 tex class=

Respuesta :

jimrgrant1 jimrgrant1
  • 10-02-2019

Answer:

[tex]\frac{1}{(x-3)(x-2)}[/tex]

Step-by-step explanation:

Factorise the denominators of both fractions

x² - 9 and x² - 4 are both differences of squares and factor as

x² - 9  = (x - 3)(x + 3) and x² - 4 = (x - 2)(x + 2), thus express as

[tex]\frac{x+2}{(x-3)(x+3)}[/tex] × [tex]\frac{x+3}{(x-2)(x+2)}[/tex]

Cancel the factors (x + 3) and (x + 2) from the numerators/denominators of both fractions leaving

[tex]\frac{1}{(x-3)(x-2)}[/tex]



Answer Link

Otras preguntas

definicion del comcepto liberalismo
1. "is going" Which principal part of the verb is used in the following sentence? Eunice is going to the prom with Zeke. A. past B. present C. past participle D
People and businesses usually file for bankruptcy in order to:
What is the Western expansion.
In a position vs time graph if the line is curved then the motion of the object may be described as
What three factors led to the rise of terrorism?
What are the products of photosynthesis? O A. C2H4O2 and H20 O B. C2H4O2 and 02 O C. C6H1206 and H20 O D. C6H1206 and 02 :)
Real or not real? (Get the reference?)
In a 30-30-90 triangle, the hypotenuse is 38, what is the length of the shortest side
Find the function value. tan 240°