Here's the question you clicked on:
JocelynHernandez
How would you describe the roots of a quadratic equation?
Like: \[\frac{ -3\pm \sqrt{17} }{ 4 }\]
Graphically, they (real zeroes) cross the x-axis. If the zeroes are complex, they do not touch the x-axis.. 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.
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the roots describe the values of x for which the required quadratic function's value is zero.
Actually we use the discriminant to determine, \[\huge\ D=b^2-4ac\]
@hba Thats what i got as the discriminant
\[b^2-4ac>0,two \ real \ solutions\]\[b^2-4ac=perfect \ squar e ,Two \ real \ rational \ solutions\]
If, \[b^2-4ac= no \ perfect \ sq uare,Two \ real \ irrational \ solutions\]
\[b^2-4ac=0,One \ real \ solution\]
\[b^2-4ac<0,No \ real \ but \ two \ imaginary \ solutions\]