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anonymous
 5 years ago
i can't figure out this problem. Factoring it doesn't work, and neither does the quadradic equation (it comes out with imaginary numbers). any ideas?
(3x+2)(x+4)=48
anonymous
 5 years ago
i can't figure out this problem. Factoring it doesn't work, and neither does the quadradic equation (it comes out with imaginary numbers). any ideas? (3x+2)(x+4)=48

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shadowfiend
 5 years ago
Best ResponseYou've already chosen the best response.0Hm. It's already factored, isn't it?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i mean solving for x.

shadowfiend
 5 years ago
Best ResponseYou've already chosen the best response.0Sorry for the downtime there  the quadratic formula doesn't give imaginary results. I suspect that, much like I did initially, you're forgetting to include the sign on the `c' part of `4ac'.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0(3x+2)(x+4)=48 3x^2+12x+2x+8=48 3x^2+14x40=0 We look at the discriminant first because of the mention of complex solutions: b^24ac=14^24*3*(40)>0, so there should be two distinct (real) roots by quadratic formula.
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