what is the meaning of 'real and distinct roots',and 'real and equal roots' ???
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25
real and distinct roots means
D^2 >0
b^2-4ac>0
real and equal roots means
D^2=0
b^2-4ac=0
plz mark brainliest
D^2 >0
b^2-4ac>0
real and equal roots means
D^2=0
b^2-4ac=0
plz mark brainliest
Answered by
25
By solving a polynomial equation you can get more than one value for the variable, these values are the roots of the equation.
roots can be either a real number with same values or can be a real number with different values.Or It can be a complex number with same or different values.
e.g:- ax² - bx +c = 0
This is a quadratic equation which can have two roots.
Roots can be evaluated by solving this equation or by the the given formula:-
where D is discriminant. and D = b² - 4ac.
(1). if D>0 ⇒ Roots are real but distinct.
(2). if D= 0 ⇒Roots are real and equal.
(3). if D<0 ⇒ Roots are imaginary.(i.e a complex number.)
roots can be either a real number with same values or can be a real number with different values.Or It can be a complex number with same or different values.
e.g:- ax² - bx +c = 0
This is a quadratic equation which can have two roots.
Roots can be evaluated by solving this equation or by the the given formula:-
where D is discriminant. and D = b² - 4ac.
(1). if D>0 ⇒ Roots are real but distinct.
(2). if D= 0 ⇒Roots are real and equal.
(3). if D<0 ⇒ Roots are imaginary.(i.e a complex number.)
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