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waheguru
 4 years ago
Simplaify This
2x^4y^3(7x^3y^2)
PLEASE HELP ME
waheguru
 4 years ago
Simplaify This 2x^4y^3(7x^3y^2) PLEASE HELP ME

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waheguru
 4 years ago
Best ResponseYou've already chosen the best response.0I dont understnad how???

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1327615451961:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0a negative index = 1 / positive eg x^2 = 1/x^2

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0the answer can also be written as 14x^1 y^5 ( x^1 = 1/x)

waheguru
 4 years ago
Best ResponseYou've already chosen the best response.0I still doont understanr

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0hmm  my time is limited at moment  try the khanacademy site wahe  its got a good reputation

waheguru
 4 years ago
Best ResponseYou've already chosen the best response.0why is the 14 positive its 2 x 7 = 14

JamesJ
 4 years ago
Best ResponseYou've already chosen the best response.1\[ 2x^{4}y^{3}(7x^3y^{2}) \] this is your expression?

JamesJ
 4 years ago
Best ResponseYou've already chosen the best response.1\[ 2x^{4}y^{3}(7x^3y^{2}) \] is this it?

waheguru
 4 years ago
Best ResponseYou've already chosen the best response.0can u help me do this one \[4a^7b^5m^10(ten) (8a^9b^5m^2)+4a^7m^12/(2a^3bm^2)^5\]

JamesJ
 4 years ago
Best ResponseYou've already chosen the best response.1wait. Do you have the answer to your first question or not?

waheguru
 4 years ago
Best ResponseYou've already chosen the best response.0yea i just forgot to put the  sigh but i dont get the way jimmy drew it why was the 14 over the other thingsdw:1327617362311:dw

JamesJ
 4 years ago
Best ResponseYou've already chosen the best response.1Let's try it one more time. Your question then is: Simply this expression \[ 2x^{4}y^{3}(7x^3y^{2}) \] correct?

waheguru
 4 years ago
Best ResponseYou've already chosen the best response.0the 2 is negative the first one

JamesJ
 4 years ago
Best ResponseYou've already chosen the best response.1So it's this: \[ 2x^{4}y^{3}(7x^3y^{2}) \] yes or no?

JamesJ
 4 years ago
Best ResponseYou've already chosen the best response.1Right. First of all then, do you agree by the commutative property of multiplication, that we can reorder all of the terms and that \[ 2x^{4}y^{3}(7x^3y^{2}) = (2)7.x^{4}x^3.y^{3}y^{2} \]

JamesJ
 4 years ago
Best ResponseYou've already chosen the best response.1Good. Now we need to simplify each set of terms appropriately. (2)7 = 14 that's straight forward I hope. What about \[ x^{4}x^3 \] what's that equal to?

JamesJ
 4 years ago
Best ResponseYou've already chosen the best response.1yes. And \[ y^{3}y^{2} \] is equal to what?

JamesJ
 4 years ago
Best ResponseYou've already chosen the best response.1Yes, hence the answer is \[14x^{1}y^{5} \] which we can also write as \[ \frac{14}{xy^5} \] that make sense?

waheguru
 4 years ago
Best ResponseYou've already chosen the best response.0I dont get the bottom part

JamesJ
 4 years ago
Best ResponseYou've already chosen the best response.1By definition \[ x^{1} \] means and is equal to \[ \frac{1}{x} \]

JamesJ
 4 years ago
Best ResponseYou've already chosen the best response.1Therefore also \[ y^{5} = (y^5)^{1} = \frac{1}{y^5} \]

waheguru
 4 years ago
Best ResponseYou've already chosen the best response.0SO if it has a power of 2 then the numerator is also 2???

JamesJ
 4 years ago
Best ResponseYou've already chosen the best response.1in the denominator, yes. For instance \[ 3^{2} = \frac{1}{3^2} \] That makes good sense because, for example it makes this consistent: \[ 3 = 3^1 \] \[= 3^{32} \] \[ = 3^3.3^{2} \] \[ = 3^3 \frac{1}{3^2} \] \[= 27 \frac{1}{9} \]

JamesJ
 4 years ago
Best ResponseYou've already chosen the best response.1that last expression is 27 times 1/9 which is of course equal to 3.

JamesJ
 4 years ago
Best ResponseYou've already chosen the best response.1Therefore \[ 14x^{1}y^{5} =  \frac{14}{xy^5} \]

waheguru
 4 years ago
Best ResponseYou've already chosen the best response.0Thankyou spoooooo much

waheguru
 4 years ago
Best ResponseYou've already chosen the best response.04a7b5m10(ten)(8a9−b−5m2)+4a7m12/(2a3bm2)5 can u help me with tis one

waheguru
 4 years ago
Best ResponseYou've already chosen the best response.0\[4a7b5m10(ten)(8a9−b−5m2)+4a7m12/(2a3bm2)5\]

JamesJ
 4 years ago
Best ResponseYou've already chosen the best response.1ok. good luck with your next one. Work it out patiently. Check it. Do it again. Iron out the errors. See if you can't figure it out. What's you've written is unreadable to me.

waheguru
 4 years ago
Best ResponseYou've already chosen the best response.0\[4a^7b^5m^10(ten)(8a^9b^5m^2)+4a^7m^12)))divide by (2a^3bm^2)\]

JamesJ
 4 years ago
Best ResponseYou've already chosen the best response.1To get more than one thing in the exponent, use curly brackets. For example x^{10} \[ x^{10} \] To write a fraction, use \frac{a}{b} \[ \frac{a}{b} \]
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