# write a matlab command to find th roots of: ax^2+bx+c=0

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Ammaa AlSada on 13 Jan 2019
Commented: Walter Roberson on 15 Apr 2022
write a MATLAB commads to find the roots of : ax^2+bx+c=0 , where a,b and c are constants?

jahanzaib ahmad on 13 Jan 2019
Edited: madhan ravi on 15 Jan 2019
a=1;
b=2;
c=3;
x1 = -b +(sqrt((b^2)-(4ac)/(2a))x;
x2=-b-(sqrt((b^2)-(4ac)/(2a));
disp(x1);
disp(x2);
jahanzaib ahmad on 14 Jan 2019
Edited: madhan ravi on 15 Jan 2019
a=1;
b=2;
c=3;
x1 = -b +(sqrt((b.^2)-(4.*a.*c)))/(2.*a);
x2=-b -(sqrt((b.^2)-(4.*a.*c)))/(2.*a);
disp(x1);
disp(x2);

madhan ravi on 14 Jan 2019
Edited: madhan ravi on 14 Jan 2019
help roots
doc roots
help poly2sym
doc poly2sym

Abu Samad on 15 Apr 2022
ax^2+bx+c=0 where abc[1,-3,2]
Walter Roberson on 15 Apr 2022
I do not understand how this answers the question?

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