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ParthKohliBest ResponseYou've already chosen the best response.0
A good start is subtracting 64 from both sides.\[ \color{Black}{\Rightarrow 9x^2 + 3x + 25  64 = 0}\] Simplify, and solve the quadratic equation.
 one year ago

a.galvan2Best ResponseYou've already chosen the best response.0
the 9x^2 is what I am confused about.
 one year ago

GanpatBest ResponseYou've already chosen the best response.2
u can solve it by factorization...
 one year ago

GanpatBest ResponseYou've already chosen the best response.2
9x2+30x+25=64 9x2+30x+2564 = 0 9x2+30x39 = 0 9x2 9x + 39x 39 = 0 9x(x1) +39 (x1) = 0 (9x +39) (x1) = 0 so, x = 39/9 and x =1....
 one year ago

a.galvan2Best ResponseYou've already chosen the best response.0
sorry, but I do know the answer involves imaginary numbers.
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
Actually no... The solutions for x as an answer does not involve imaginary #'s, and it's not 59/3
 one year ago

cornitodiscBest ResponseYou've already chosen the best response.0
ah..so my answer was wrong...sorry
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
With the imaginary line, it's the intersection: dw:1343664593480:dw
 one year ago

a.galvan2Best ResponseYou've already chosen the best response.0
The answer in the back of the book is \[x=(10+2i \sqrt14)/6, (102i \sqrt14)/6 \] I just can't figure out how it got there.
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
The blue line is (3x+5)^2 The imaginary line is 64i
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
That answer is crazy, this has solvable real number values. Yes you can combine those to get X, but why?
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
In this case I'd say either the problem was written down for us incorrectly/incompletedirections, or the book is making it a whole lot harder than it needs be...
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
:S Go with what @Ganpat said, unless there's something missing or incorrect here with regards to the question and it's directions as you wrote it here. He's 100% correct.
 one year ago

agentx5Best ResponseYou've already chosen the best response.0
Plug in those values for x and you'll it works.
 one year ago

GanpatBest ResponseYou've already chosen the best response.2
@agentx5 : when did i say that ? :D.. lol
 one year ago
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