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

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

mathmateBest 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_uetBest ResponseYou've already chosen the best response.0
dw:1358090824515:dw
 one year ago

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

rizwan_uetBest 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

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

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

hbaBest 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

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

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

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