Answer: (Is obviously A 212)
One approach is to express
8x2y
so that the numerator and denominator are expressed with the same base. Since 2 and 8 are both powers of 2, substituting
23
for 8 in the numerator of
8x2y gives(23)x2y
which can be rewritten
23x2y
Since the numerator and denominator of have a common base, this expression can be rewritten as 2(3x−y). In the question, it states that
3x−y=12, so one can substitute 12 for the exponent,
3x−Y, which means that
8x2=212
Step-by-step explanation: Ez