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anonymous
 3 years ago
How would you describe the roots of a quadratic equation?
anonymous
 3 years ago
How would you describe the roots of a quadratic equation?

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anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Like: \[\frac{ 3\pm \sqrt{17} }{ 4 }\]

mathmate
 3 years ago
Best ResponseYou've already chosen the best response.0Graphically, they (real zeroes) cross the xaxis. If the zeroes are complex, they do not touch the xaxis.. Numerically, the roots, x1 and x2, have the property that f(x1)=0 and f(x2)=0, where f(x)=0 is the quadratic equation.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1358090824515:dw

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1358090914575:dw

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0the roots describe the values of x for which the required quadratic function's value is zero.

hba
 3 years ago
Best ResponseYou've already chosen the best response.1Actually we use the discriminant to determine, \[\huge\ D=b^24ac\]

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0@hba Thats what i got as the discriminant

hba
 3 years ago
Best ResponseYou've already chosen the best response.1\[b^24ac>0,two \ real \ solutions\]\[b^24ac=perfect \ squar e ,Two \ real \ rational \ solutions\]

hba
 3 years ago
Best ResponseYou've already chosen the best response.1If, \[b^24ac= no \ perfect \ sq uare,Two \ real \ irrational \ solutions\]

hba
 3 years ago
Best ResponseYou've already chosen the best response.1\[b^24ac=0,One \ real \ solution\]

hba
 3 years ago
Best ResponseYou've already chosen the best response.1\[b^24ac<0,No \ real \ but \ two \ imaginary \ solutions\]
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