SOLUTION: What is the sum x+4/x2+6x+9 - 1/x2-9 i dont get it beacuse it says the sum but has a minus sign here are the options:
A) x2-x-15
(x+3)^2(x-3
B) x2+x-15
(x+3)^2(x-3)
C)
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Expressions-with-variables
-> SOLUTION: What is the sum x+4/x2+6x+9 - 1/x2-9 i dont get it beacuse it says the sum but has a minus sign here are the options:
A) x2-x-15
(x+3)^2(x-3
B) x2+x-15
(x+3)^2(x-3)
C)
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Question 473139: What is the sum x+4/x2+6x+9 - 1/x2-9 i dont get it beacuse it says the sum but has a minus sign here are the options:
A) x2-x-15
(x+3)^2(x-3
B) x2+x-15
(x+3)^2(x-3)
C) x2-15
(x+3)^2(x-3)
D) x2-15
(x-3)^2(x+3)
You can put this solution on YOUR website! (x+4)/(x^2+6x+9) - 1/(x^2-9) i dont get it because it says the sum but has a minus sign here are the options:
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(x+4)/(x+3)^2 - 1/[(x-3)(x+3)]
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least common denominator: (x-3)(x+3)^2
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Rewrite each fraction with the lcd as its denominator:
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[(x+4)(x-3)]/lcd - (x+3)/lcd
---
Combine the numerators over the lcd:
[x^2+x-12-x-3]/lcd
----
= [x^2-15]/[(x-3)(x+3)^2]
=========================
Cheers,
Stan H.
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A) x2-x-15
(x+3)^2(x-3
B) x2+x-15
(x+3)^2(x-3)
C) x2-15
(x+3)^2(x-3)
D) x2-15
(x-3)^2(x+3)
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