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vishweshshrimali5Best ResponseYou've already chosen the best response.0
No not this time I think you have copied your question incorrectly it should be a^2  a  20 right ?
 one year ago

AshhSmithBest ResponseYou've already chosen the best response.0
no it has 5 in this one
 one year ago

AshhSmithBest ResponseYou've already chosen the best response.0
i see it's prime so how do i show work
 one year ago

nitzBest ResponseYou've already chosen the best response.2
is the answer \[5+\sqrt{105}/2,5\sqrt{105}/2\]
 one year ago

precalBest ResponseYou've already chosen the best response.0
when it is prime, we just state "prime" and do not attempt to factor. Now if it said, solve then we solve using the quadratic formula
 one year ago

AshhSmithBest ResponseYou've already chosen the best response.0
no because it's prime
 one year ago

nitzBest ResponseYou've already chosen the best response.2
but it can be solved by discriminant method
 one year ago

AshhSmithBest ResponseYou've already chosen the best response.0
it just said factor and show work so i don't think i have to use that .
 one year ago

precalBest ResponseYou've already chosen the best response.0
correct, if the instructions were to factor write "prime" if the instructions were to solve then use the quadratic formula
 one year ago

nitzBest ResponseYou've already chosen the best response.2
It's prime! Applying quadratic formula, we get: a^2 – 5*a – 20 = 0 a = 1, b =  5, c =  20 b^2  4*a*c = 25  4*1*(  20) = 105 a1 = (  (  5) + sqrt(105))/2 = 5/2 + (1/2)*sqrt(105) a2 = 5/2  (1/2)*sqrt(105)
 one year ago
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