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JocelynHernandez
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How would you describe the roots of a quadratic equation?
 one year ago
 one year ago
JocelynHernandez Group Title
How would you describe the roots of a quadratic equation?
 one year ago
 one year ago

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JocelynHernandez Group TitleBest ResponseYou've already chosen the best response.0
Like: \[\frac{ 3\pm \sqrt{17} }{ 4 }\]
 one year ago

mathmate Group TitleBest ResponseYou've already chosen the best response.0
Graphically, 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.
 one year ago

rizwan_uet Group TitleBest ResponseYou've already chosen the best response.0
dw:1358090824515:dw
 one year ago

rizwan_uet Group TitleBest ResponseYou've already chosen the best response.0
dw:1358090914575:dw
 one year ago

rizwan_uet Group TitleBest ResponseYou've already chosen the best response.0
the roots describe the values of x for which the required quadratic function's value is zero.
 one year ago

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

JocelynHernandez Group TitleBest ResponseYou've already chosen the best response.0
@hba Thats what i got as the discriminant
 one year ago

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

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

hba Group TitleBest ResponseYou've already chosen the best response.1
\[b^24ac=0,One \ real \ solution\]
 one year ago

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

JocelynHernandez Group TitleBest ResponseYou've already chosen the best response.0
Thanks! @hba
 one year ago

hba Group TitleBest ResponseYou've already chosen the best response.1
You are welcome :)
 one year ago
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