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anonymous
 one year ago
Simplify and select the answer with the appropriate restrictions for the variables
anonymous
 one year ago
Simplify and select the answer with the appropriate restrictions for the variables

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1433096866824:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0Factor the numerator and denominator.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1433096969256:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what do you think? @Michele_Laino

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0please, solve the subsequent quadratic equation, first: \[{x^2}  2x  8 = 0\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0how do you do that? @Michele_Laino

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0this will factor to the form (x + a)(x + b) where ab = 8 and a + b = 2 can you find what a and b will be?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.08 and 2? since, (8+8)(2+2)=0

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0alternatively, you can apply the standard formula, so you have to compute this: \[x = \frac{{2 \pm \sqrt {{2^2}  4 \times 1 \times \left( {  8} \right)} }}{2}\]

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0no that won't fit factoring 8 will help: 8 = 4 * 2 or 8 = 4 * 2 which ons will give you 2 when added?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0I got: 4, and 2

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0so we can write this factorization: \[{x^2}  2x  8 = \left( {x  4} \right)\left( {x + 2} \right)\]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0substituting into your expression, we get: \[\frac{{3{x^2} + 6x}}{{{x^2}  2x  8}} = \frac{{3x\left( {x + 2} \right)}}{{\left( {x  4} \right)\left( {x + 2} \right)}}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0nvm bc it has to match up to 4 and 2

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0that's right, it is option D

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0wait so is it 4 and 2 or 4 and 2

welshfella
 one year ago
Best ResponseYou've already chosen the best response.04 and 2  in order to get the 2x

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i will tag you in my next question!!:D

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0dw:1433100747460:dw
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