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hartnn
 one year ago
Best ResponseYou've already chosen the best response.2for the equation \(\Large ax^2+bx+c = 0\) to have no real roots, \(\large b^2 4ac\) must be less than 0. so first compare x^2 +2x+c = 0 with ax^2 +bx+c = 0 and find a,b,c

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2a= 1, b = 2 and c = c now find b^2 4ac

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0then it equals 4c+4?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2\(\Large b^24ac < 0 \\ \large 4  4c < 0\) factor out the 4

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2or just add 4c on both sides

hartnn
 one year ago
Best ResponseYou've already chosen the best response.24 < 4c divide both sides by 4

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2yea, ok 4 (1c) < 0 dividing both sides by 4 1c < 0 or 1<c

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2which option satisfies that c>1 ??

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2there will be no real roots when c is greater than 1

hartnn
 one year ago
Best ResponseYou've already chosen the best response.2good! \(\huge \checkmark \)
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