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anonymous
 one year ago
Using the quadratic formula to solve 2x2 = 4x – 7, what are the values of x?
anonymous
 one year ago
Using the quadratic formula to solve 2x2 = 4x – 7, what are the values of x?

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LynFran
 one year ago
Best ResponseYou've already chosen the best response.2rewrite the equation to get 2x^24x+7=0 where a=2 , b=4 and c=7 now substitute the values in the quadratic formula \[\frac{ b \pm \sqrt{(b ^{2}4ac)} }{ 2a }\]

LynFran
 one year ago
Best ResponseYou've already chosen the best response.2\[\frac{ (4)\pm \sqrt{((4)^{2}4(2)(7))} }{ 2(2) }\]now simplify...

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0its been a while since ive done this and ive lost it

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Linda I need you for a minute

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0continuing the step: \[\frac{ (4)\pm \sqrt{(16)(56)} }{ 4 }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[\frac{ (4)\pm \sqrt{(40)} }{ (4) }=\frac{ (4)\pm \sqrt{(40)(1)} }{ 4 }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0complex numbers: \[\frac{ (4)\pm(\sqrt{40})(\sqrt{1}) }{ 4 }=\frac{ (4)\pm(\sqrt{40})i }{ 4 }\] :)
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