SAT math
posted by mysterychicken
True or False: The least common denominator of each denominator in the following rational expression is 2(x3)(x1)
: 8 / x^24x+3 = 1 / 3x + 1 / 2
FALSE?
True or False: The least common denominator of each denominator in the following rational expression is 2(x1)
:
8 / x^24x+3 = 1 / 3x + 1 / 2
FALSE?

Steve
Since x^24x+3 = (x3)(x1)
and (3x) is just (x3)
The LCD is 2(x3)(x1)
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.
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