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Enter the values for the highlighted variables that show how to subtract the rational expressions correctly

Enter the values for the highlighted variables that show how to subtract the rational expressions correctly class=

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pmayl
a = 6
x^2 + 6x is equal to x(x+6)
b=2
Denominator and numerator of the first term are multiplied by x. 
c=6
Second term is multiplied by (x-6)/(x-6)
d=2
Now that they have the same denominator, the two terms are combined. 2 is the coefficient of the first term
e=6
In the same way as d is carried over from b, e is carried over from c. 
f = 6
2x - x + 6 = x + 6
g = 1 
We factor out the (x+6) from the numerator and denominator

The values of the highlighted variables can be obtained by comparing the

results of the steps of the subtraction process.

The values are;

  • a = 6
  • b = 2
  • c = 6
  • d = 2
  • e = 6
  • f = 6
  • g = 1

Reasons:

The given rational expression is presented as follows;

  • [tex]\dfrac{2}{x^2 - 36} - \dfrac{1}{x^2+ 6 \cdot x} = \dfrac{2}{(x + 6) \cdot (x - 6)} - \dfrac{1}{x \cdot (x+ 6 )}[/tex]

By comparing the above equation, to the question, we have;

x·(x + 6) = x·(x + a)

Therefore;

a = 6

  • [tex]\dfrac{2}{(x + 6) \cdot (x - 6)} - \dfrac{1}{x \cdot (x+ 6 )} = \dfrac{2 \cdot x }{(x + 6) \cdot (x - 6) \cdot x} - \dfrac{ (x - 6) }{x \cdot (x+ 6 )\cdot (x - 6) }[/tex]

By comparing the above expression, we have;

2·x = b·x

b = 2

(x - 6) = (x - c)

c = 6

  • [tex]\dfrac{2 \cdot x }{(x + 6) \cdot (x - 6) \cdot x} - \dfrac{ (x - 6) }{x \cdot (x+ 6 )\cdot (x - 6) } = \dfrac{2 \cdot x - x + 6}{(x + 6) \cdot (x - 6) \cdot x}[/tex]

By comparing, we have;

2·x - x + 6 = d·x - x + e

d = 2, e = 6

  • [tex]\dfrac{2 \cdot x - x + 6}{(x + 6) \cdot (x - 6) \cdot x} = \dfrac{ x + 6}{(x + 6) \cdot (x - 6) \cdot x}[/tex]

Comparing gives;

x + 6 = x + f

f = 6

  • [tex]\dfrac{ x + 6}{(x + 6) \cdot (x - 6) \cdot x} = \dfrac{1}{ x\cdot (x - 6) } = \dfrac{g}{ x\cdot (x - 6) }[/tex]

Therefore; g = 1

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