Add exponents of equal bases to multiply. On the left, you get 3^3x. The nth root of a base equals to the exponent * n power yields the same value. 27^y becomes 3^3y. 3^3x=3^3y. The cube root of each side gives 3^x=3^y. Take the base 3 log of each side and x=y.
I totally screwed this one up. For some reason, I kept trying to multiply exponents when I should have been adding (I swear, I know better, I just had a brain fart).
I solved it in my head and was wondering what kind of a certificate I'd get from you for this tricky problem BUT no, nothing at all. No like from me this time.
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Add exponents of equal bases to multiply. On the left, you get 3^3x.
The nth root of a base equals to the exponent * n power yields the same value. 27^y becomes 3^3y.
3^3x=3^3y.
The cube root of each side gives 3^x=3^y.
Take the base 3 log of each side and x=y.
(X - 1) + (2X + 1) = 3Y => 3X = 3Y => X = Y. :) (27 = 3^3 and you have to add the powers X - 1 and 2X + 1 (for example: 3^3 x 3^2 = 3^3 + 2 = 3^5).
3^a . 3^b = 3^(3y) so a + b = 3y or x - 1 + 2x + 1 = 3y -> 3x = 3y -> y = x
a) x 3^3x=27^x=27^y, so y=x
got it 3x = 3y the exponents are = so x = y thanks for the fun.
I totally screwed this one up. For some reason, I kept trying to multiply exponents when I should have been adding (I swear, I know better, I just had a brain fart).
Mathematicians rock! ❤
a) y = x
The answer is X which is choice A
a) x
Non logical axioms
I solved it in my head and was wondering what kind of a certificate I'd get from you for this tricky problem BUT no, nothing at all. No like from me this time.
3y=3×
Y =×