#how do i simplify this?

41 messages · Page 1 of 1 (latest)

honest stump
woven cove
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ok thank you

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was just a bit confused got the same answer

arctic sentinel
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Is this really gcse🥲

arctic sentinel
# honest stump

What is the denominator supposed to say on the 4th step? What do the dots mean

honest stump
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some places use dot for multiplication instead of x so that you dont get confused with x as a variable

arctic sentinel
# honest stump times

Oh so you expand the bracket right but how comes it isn’t just 3^3x^-2 times 2/3 but instead its 3^3 • 2/3 x ^-2•2/3?

honest stump
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(ab)^c = a^c * b^c

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. * is also another way of saying times

arctic sentinel
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Ohh right thanks

arctic sentinel
honest stump
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11/6

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11/0 is undefined

arctic sentinel
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what💀

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Im cooked asf

honest stump
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you cant divide by 0

arctic sentinel
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Thought anything divided by 0 was 1😭

honest stump
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anything to the power of 0 is one

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excluding 0

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0^0 is also undefined

arctic sentinel
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I asked my teacher that once and she said 0^0 is 1

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But ik its wrong

honest stump
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some people take that to be true

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in fancy terms if you take the limit of x^x as x->0 then you get 1

arctic sentinel
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The original question

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And what topic

honest stump
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idk the website

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topic is probably under laws of exponents

arctic sentinel
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On maths genie it says this topic is grade 6 whys it so hard💀

honest stump
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you have time

arctic sentinel
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Well, fractional indicies

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Yeah i got 2 years so its calm

honest stump
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its really just as simple as remembering the laws

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a^b * a^c = a^(b+c)
a^b / a^c = a^(b-c)
(ab)^c = a^c * b^c

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those are the only ones i can think of off the top of my head

arctic sentinel
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Also at the end where it says x^1/2—4/3 do u just add them

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Since - -=+

honest stump
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yes