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anonymous
 one year ago
Which expression is equivalent to (7^3)−2?
1 over 7 times 7 times 7 times 7 times 7 times 7
7
1 over 7
negative 1 over 7 times 7 times 7 times 7 times 7 times 7
anonymous
 one year ago
Which expression is equivalent to (7^3)−2? 1 over 7 times 7 times 7 times 7 times 7 times 7 7 1 over 7 negative 1 over 7 times 7 times 7 times 7 times 7 times 7

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@IrishBoy123 @imqwerty

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I need help with some exponent questions if you can help that'd be awesome

phi
 one year ago
Best ResponseYou've already chosen the best response.3what does a negative exponent mean ? any idea ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Just like a regular exponent just negative?

phi
 one year ago
Best ResponseYou've already chosen the best response.3there is a long explanation of why it is so, but cutting to the chase \[ a^{b}= \frac{1}{a^b} \] and \[ a^{b}= \frac{1}{a^{b}} \]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0hmm i get confused with fractions and exponents so I really dont know

phi
 one year ago
Best ResponseYou've already chosen the best response.3that "rule" says: flip the fraction *and* negate the exponent.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0This is a combo of both lol

phi
 one year ago
Best ResponseYou've already chosen the best response.3you can learn it if you have time try guessing what \( 2^{1} \) is. (flip it and negative the exponent)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0its a negative exponent?

phi
 one year ago
Best ResponseYou've already chosen the best response.3\( 2^{1} \) has an exponent of 1 you can "rewrite it" by 1) flipping it 2) make the exponent (1) = +1

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the 1 is the exponent?

phi
 one year ago
Best ResponseYou've already chosen the best response.3can you rewrite \( 2^{1} \) ?

phi
 one year ago
Best ResponseYou've already chosen the best response.3flip (invert) means if you have a, write 1/a if you have 1/a write a if you have (stuff) write 1/(stuff)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0like the  sign is negative?

phi
 one year ago
Best ResponseYou've already chosen the best response.32^(1) first step: FLIP 1/2^(1)) second step: change the exponent 1 to (1) (which simplifies to 1) we get 1/2^1 or just 1/2

phi
 one year ago
Best ResponseYou've already chosen the best response.3\[ 2^{1} = \frac{1}{2^1} = \frac{1}{2} \]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok so the 2^1 would be 1^2?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok i think i got that

phi
 one year ago
Best ResponseYou've already chosen the best response.3if you just had 3 \[ 3 \text{ flipped is } \frac{1}{3} \]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so instead of 1^3 itd be 1/3??

phi
 one year ago
Best ResponseYou've already chosen the best response.3ok, one more \[ 3^{2} \] can you flip and negate the exponent?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ya 2/3 that would be correct i believe

phi
 one year ago
Best ResponseYou've already chosen the best response.3none of those. you don't change 3^2 when you flip it rather, we think of it as \[ \frac{3^{2}}{1} \] and swap top and bottom to flip it. then change the 2 to +2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0its still really confusing

phi
 one year ago
Best ResponseYou've already chosen the best response.3in \( \frac{1}{2} \) what is the top number ?

phi
 one year ago
Best ResponseYou've already chosen the best response.3and 2 is the bottom number. what do you get if you swap those ?

phi
 one year ago
Best ResponseYou've already chosen the best response.3and what do you get if you flip 2/1 ?

phi
 one year ago
Best ResponseYou've already chosen the best response.3normally when we flip a number, say 2 to 1/2 we get different numbers. (2 is not 1/2) but if we *also* change its exponent, we get the same number

phi
 one year ago
Best ResponseYou've already chosen the best response.3in other words \[ 2^{1}\] if we flip it , to get \( \frac{1}{2^{1}} \) and then change the 1 to +1, \[ 2^{1}=\frac{1}{2} \]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok so we pretty much eliminate the 1? if we do +1?

phi
 one year ago
Best ResponseYou've already chosen the best response.3another example \[ 2^{5} = \frac{1}{2^5} \]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0then if we changed the exponent to +5 it'd go as 1/2?

phi
 one year ago
Best ResponseYou've already chosen the best response.3I don't understand the question. can you ask in a different way?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0if we changed the 5 to +5 then instead of 1/25 it would be 1/2?

phi
 one year ago
Best ResponseYou've already chosen the best response.3\[ \frac{1}{2^{5}} \] 1) flip it and 2) change the sign on the 5 we get \[ \frac{1}{2^{5}} =2^5\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0still really weird to me

phi
 one year ago
Best ResponseYou've already chosen the best response.3it all makes sense (once you learn what is going on) but for the moment, just learn the rules 2^5 can be written as 1/2^5 2^5 can be written as 1/2^5

phi
 one year ago
Best ResponseYou've already chosen the best response.3\[ (7^3)^{−2}\] can you rewrite this? (tread the (7^3) as one thing)

phi
 one year ago
Best ResponseYou've already chosen the best response.3leave (7^3) alone. it is one thing. keep it one thing. but if we do (7^3)^ 2 what can we do to make the 2 positive ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i believe flip the numbers around? I really dont know DD:

phi
 one year ago
Best ResponseYou've already chosen the best response.3yes flip. think of (7^3) as one "number"

phi
 one year ago
Best ResponseYou've already chosen the best response.3you changed (7^3) . don't change it.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0if we made it different it would be 7/3^2?

phi
 one year ago
Best ResponseYou've already chosen the best response.3yes, what changes is we write 1/(7^3)^2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok so the 7 stays with the 3

phi
 one year ago
Best ResponseYou've already chosen the best response.3we now have \[ \frac{1}{(7^3)^2}\]

phi
 one year ago
Best ResponseYou've already chosen the best response.3do you know that x^2 means x*x ?

phi
 one year ago
Best ResponseYou've already chosen the best response.3do you know that 3^2 means 3*3 ?

phi
 one year ago
Best ResponseYou've already chosen the best response.3what about (7^3)^2 any idea ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I was think 7x3x2 but that wouldnt be correct right

phi
 one year ago
Best ResponseYou've already chosen the best response.3use the same pattern as 2^2 = 2*2 3^2 = 3*3 4^2 = 4*4 x^2 = x*x y^2 = y*y do you see how to do (7^3)^2 ?

phi
 one year ago
Best ResponseYou've already chosen the best response.3would you believe (7^3)*(7^3) ?

phi
 one year ago
Best ResponseYou've already chosen the best response.3if you have something and want to say: multiply by itself 2 times, you write (something)^2 and that is short for something * something

phi
 one year ago
Best ResponseYou've already chosen the best response.3so you want to show (xyz) times itself 3 times you would write (xyz)^3

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so it would be 7x7x7?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0if I understand correctly or 7x3?

phi
 one year ago
Best ResponseYou've already chosen the best response.3so (7^3)^2 means (7^3)*(7^3) and 7^3 means 7*7*7 so we can say (7*7*7)*(7*7*7) or just 7*7*7*7*7*7 so \[ \left(7^3\right)^{2}= \frac{1}{7\cdot 7\cdot 7\cdot 7\cdot 7\cdot 7} \]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0btw I have a few more if you can help:?
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