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Fractal
- Master | Next Rank: 500 Posts
- Posts: 183
- Joined: Sun Aug 22, 2010 1:02 am
- Location: Switzerland
- Thanked: 5 times
i am just confused:
2^(-2)^2 = 2^4 --> not 2^(-4)
but:
4^(x-1)^2 = 4^(2x-2)
so in the first expression, we square the exponent, but in the
second expression, we just multiply the exponents.
when multiplying and when take the square??
who can explain me this? thx
2^(-2)^2 = 2^4 --> not 2^(-4)
but:
4^(x-1)^2 = 4^(2x-2)
so in the first expression, we square the exponent, but in the
second expression, we just multiply the exponents.
when multiplying and when take the square??
who can explain me this? thx
