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CBSE Class 10 Answered

show that x squared minus 3 x minus square root of x plus 4 equals 0 isn't a quadratic equation.
Asked by araima2001 | 12 Oct, 2015, 07:47: PM
answered-by-expert Expert Answer
G i v e n space e q u a t i o n space i s space x squared minus 3 x minus square root of x plus 4 equals 0 A n y space s e c o n d space d e g r e e space p o l y n o m i a l space o f space t h e space f o r m space a x squared plus b x plus c equals 0 comma space a not equal to 0 comma space i s space s a i d space t o space b e space a space q u a d r a t i c space e q u a t i o n. A l s o space t h e space p o w e r s space o f space x space s h o u l d space b e space a space n o n minus n e g a t i v e space i n t e g e r s. T h a t space i s comma space t h e r e space s h o u l d space b e space n o space s q u a r e space r o o t s space o f space v a r i a b l e s comma space n o space f r a c t i o n a l space p a r t s space a n d space n o space v a r i a b l e s space i n space t h e d e n o m i n a t o r space o f space a n y space f r a c t i o n s. F r o m space t h e space g i v e n space e q u a t i o n comma space s q u a r e space r o o t space o f space v a r i a b l e space i s space t h e r e space a n d space h e n c e space i t space i s space n o t space a space p o l y n o m i a l. T h u s comma space i t space i s space n o t space a space q u a d r a t i c space e q u a t i o n.
Answered by Vimala Ramamurthy | 13 Oct, 2015, 10:23: AM

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