Question

√5m²-√5m+√5=0 which of the following statement is true for this given equation ?
(A) Real and uneual roots
(B) Real and equal roots
(C) Roots are not real
(D) Three roots

Answer 1

Option c is correct

Discriminant = b² - 4ac

=> (-√5)² - 4(√5)(√5)

=> 5 - 20

=> -15

As -15< 0, the equation doesnt have any real root.

Answer 2

Hi ,

Compare √5m² - √5 m + √5 = 0 with

am² + bm + c = 0 , we get

a = √5 , b = -√5 , c = √5

Discreaminant ( D )= b² - 4ac

D = ( -√5 )² - 4 × √5 × √5

= 5 - 4 × 5

= 5 - 20

D = -15

D < 0

Therefore ,

Roots are not real .

Option ( C ) is correct.

I hope this helps you.

: )