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Yakvenalex [24]
3 years ago
15

Enter the values for the highlighted variables to complete the steps to the sum (3x)/(2x - 6) + 9/(6 - 2x) = (3x)/(2x - 6) + 9/(

a(2x - 6)) = 3x 2x-6 + 6 2x-6 = 3x-c 2x-6 = d(x-x) f(x-3) =g
Mathematics
1 answer:
horrorfan [7]3 years ago
5 0

Answer:

a= -1

b= -9

c=9

d=3

e=3

f=2

g=\frac32

Step-by-step explanation:

Rule of sign:

  1. (-)×(+)=(-), (-)÷(+)=(-)
  2. (+)×(-)=(-) , (+)÷(-)=(-)
  3. (+)×(+)=(+), (+)÷(+)=+
  4. (-)×(-)=(+), (-)÷(-)=(+)

Given that,

\frac{3x}{2x-6}+\frac{9}{6-2x}

We can rewrite 6-2x as 2x-6, taking (-1) as common factor of (6-2x)

=\frac{3x}{(2x-6)}+\frac{9}{-1(2x-6)}

So, a= -1

\frac9{-1}=-9

=\frac{3x}{(2x-6)}+\frac{-9}{(2x-6)}

So, b= -9

The L.C.M of (2x-6) and (2x-6) is (2x-6)

and (2x-6)÷(2x-6)=1

=\frac{1 \times 3x+1\times (-9)}{(2x-6)}

=\frac{( 3x-9)}{(2x-6)}

∴c= 9

(3x-9) has a common factor 3 and (2x-6) has a common factor 2.

(3x-9)=3(x-3)

(2x-6)=2(x-3)

=\frac{3(x-3)}{2(x-3)}

∴d=3, e=3 and f=2

Since the denominator and numerator are the product of two polynomial. So, if there is any common element, then can cancel the common factor.

Here the common factor is (x-3). So cancel  out (x-3).

=\frac32

\therefore g=\frac32

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