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Long division with decimals |
2017-06-16 |
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Kenneth pose la question :
Hello:
Why is it recommended to move the decimal from a divisor when dividing so that the divisor is a whole number?
I know how to divide by moving the decimal from the divisor, but I cannot explain the reason.
I thank you for your reply.
Penny Nom lui répond. |
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Long division |
2012-06-07 |
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Emily pose la question :
Simplify the expression using long division (9x^2-41x-6)/(x-4)
Penny Nom lui répond. |
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Explaining the factoring for the difference of cubes |
2008-01-16 |
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Bill pose la question :
A student asked me where did the "difference of cubes" and "sum of cubes" come from. I did not have an answer for her. She is very bright and understands how they work but wanted to know where they derived from. Any help you can offer would be great. Thanks
Stephen La Rocque lui répond. |
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Simplifying a quartic rational expression using long division |
2007-06-14 |
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Megan pose la question :
x+2/12x^4+17x^3+0x^2+8x-40=
Stephen La Rocque and Penny Nom lui répond. |
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Some algebra |
2002-05-11 |
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A student pose la question :
/x - 2 ^4/x = 8
/ = square root sign
^ = 4th root of x
also, dividing
2x3 -3 -6x
__________
4 + 2x
the 2x3 is 2x to the third
Penny Nom lui répond. |
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