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OpenStudy (eunice_o):
@RhondaSommer
RhondaSommer (rhondasommer):
okay so \[16x^6 -18x^3/2x^3\]do 16/2=? and -18/2=?
OpenStudy (eunice_o):
8 and -9
RhondaSommer (rhondasommer):
okay so now\[\frac{x^6}{x^3}\]is basically \[x^{6-3}\]so what is 6-3?
OpenStudy (eunice_o):
3
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RhondaSommer (rhondasommer):
yup! okay so now we have\[8x^3-9\]now\[\frac{x^3}{x^3}\]is basically\[x^{3-3}\]so what is \[3-3\]
OpenStudy (eunice_o):
0
RhondaSommer (rhondasommer):
yup. so we dont put that one in :D so your answer is...
OpenStudy (eunice_o):
8x^3-9
RhondaSommer (rhondasommer):
yup :D
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OpenStudy (eunice_o):
so basically we used the denominator to get the answers from the numerator ?
RhondaSommer (rhondasommer):
yes, you subtracted the numerator from the denominator (only the exponents)
RhondaSommer (rhondasommer):
had the number been a negative you would have place everything but that exponent on top and make it a positive (say it had been \[4x^{3-6}y\] then it would be \[4\frac{x^3}{y}\]