Question
True or False: The least common denominator of each denominator in the following rational expression is -2(x-3)(x-1)
: 8 / x^2-4x+3 = 1 / 3-x + 1 / 2
FALSE?
True or False: The least common denominator of each denominator in the following rational expression is -2(x-1)
:
8 / x^2-4x+3 = 1 / 3-x + 1 / 2
FALSE?
: 8 / x^2-4x+3 = 1 / 3-x + 1 / 2
FALSE?
True or False: The least common denominator of each denominator in the following rational expression is -2(x-1)
:
8 / x^2-4x+3 = 1 / 3-x + 1 / 2
FALSE?
Answers
Steve
Since x^2-4x+3 = (x-3)(x-1)
and (3-x) is just -(x-3)
The LCD is 2(x-3)(x-1)
So, TRUE
Dunno why they included the "-" in the denominator, but it works with or without it.
Similarly, FALSE for the 2nd
The wording is poor. You can't have an LCD for "each" denominator. It takes more than one to have a "common" denominator.
and (3-x) is just -(x-3)
The LCD is 2(x-3)(x-1)
So, TRUE
Dunno why they included the "-" in the denominator, but it works with or without it.
Similarly, FALSE for the 2nd
The wording is poor. You can't have an LCD for "each" denominator. It takes more than one to have a "common" denominator.