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After the fraction x plus 2 all over 3 minus the fraction x plus 1 all over 2x have been combined using the least common denominator of 6x, what is the numerator? 2x2 + x − 3 2x2 + x − 1 −2x2 + x + 6 −x2
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Nov 14, 2018
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After the fraction x plus 2 all over 3 minus the fraction x plus 1 all over 2x have been combined using the least common denominator of 6x, what is the numerator?
2x2 + x − 3
2x2 + x − 1
−2x2 + x + 6
−x2 + 2x + 6
Mathematics
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TheClassic
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We have:
( x + 2 ) / 3 - ( x + 1 ) / 2 x =
2 x * ( x + 2 ) / 6 x - 3 ( x + 1 ) / 6 x = ( 6 x is the least common denominator )
= 2 x² + 4 x / 6 x - ( 3 x + 3 ) / 6 x =
= ( 2 x² + 4 x - 3 x - 3 ) / 6 x =
= ( 2 x² + x - 3 ) / 6 x
Answer:
The numerator is :
A ) 2 x² + x - 3
.
Tashira
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Nov 19, 2018
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Tashira
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