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anonymous
 5 years ago
x(x7)=49 ???
anonymous
 5 years ago
x(x7)=49 ???

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Okay  let's multiply out the left side. \[x ^{2}7x=49\] Then we'll make a traditional equation set to 0 by adding 49 to both sides: \[x ^{2}7x+49=0\] Now we have to use the quadratic equation (because no two numbers, when multiplied by each other = 49, and when added to each other=7) \[(b \pm \sqrt{b ^{2}4ac})/2a\] From our traditional equation, a=1, b=7, and c=49 so we have \[((7)\pm \sqrt{7^{2}4*1*49})/2*1\] That's all just numbers, so see what you can do with it..

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0oh that way i ended up with the x's on one side and didnt know what to do afterwards :p

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0amist...did I do that right? I think I get a complex number out of that mess...

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0huh?? isnt that equation i just need to put inot my calculator?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.2there are no 'real' solutions lol

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.2sqrt(#) is not answerable in an R^2 line up

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0didn't seem like a complex question....I think you may have mistyped the question, MissM, because there is not a real solution to this equation, and from what I recall I am not sure it is applicable to the level of math you are studying. What class is this for?
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