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velox_xox
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First of all, thank you, everyone, for all your help with my math conundrums! I've really appreciated the patience and helpful hints - because I do want to learn it myself, so this method is just enough for me to cut the math problems down to size. I'm thankful. And, I have noticed my scores improved because I'm recognizing my trouble areas more often. So, to anyone out there shy to ask for help, I do suggest this forum. It's been very useful!
Simplify. (a - b)/(a-1 - b-1)
Answer: -ab
This lesson is teaching that you can either simplify the numerator and denominator separately and divide; or multiply the whole thing by the LCD and then simpify.
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(a - b)/(a-1 - b-1)
Switched to a different format.
(a-b)/1 ÷ (a-1 - b-1)/1
Get rid of negative exponents.
(a-b)/1 ÷ 1/(a - b)
Invert the second fraction & switch to multiplication.
(a-b)/1 X (a-b)/1
Perform multiplication.
a2 - 2ab - b2
Homework Statement
Simplify. (a - b)/(a-1 - b-1)
Answer: -ab
This lesson is teaching that you can either simplify the numerator and denominator separately and divide; or multiply the whole thing by the LCD and then simpify.
Homework Equations
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The Attempt at a Solution
(a - b)/(a-1 - b-1)
Switched to a different format.
(a-b)/1 ÷ (a-1 - b-1)/1
Get rid of negative exponents.
(a-b)/1 ÷ 1/(a - b)
Invert the second fraction & switch to multiplication.
(a-b)/1 X (a-b)/1
Perform multiplication.
a2 - 2ab - b2
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