Answer:
x=4/9
Step-by-step explanation:
27 ^(3x) = 81
Replace 27 with 3^3 and 81 with 3^4
3^3^(3x) = 3^4
We know that a^b^c = a^(b*c)
3^(9x) = 3^4
Since the bases are the same, the exponents are the same
9x =4
Divide each side by 9
9x/9 = 4/9
x = 4/9
Thousands because the 4 is in the ten thousands
Answer:
A.
Step-by-step explanation:
Make bottom number same
ok, so remember
(a-b)(a+b)=a²+b²
so
to get from (y-x) to (y²-x²), multiply 2nd fraction by (y+x)
so multiply 2nd fraction by (y+x)/(y+x)

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