How to prove that 9x^2 + 30x + 28 has no zeroes.........
How to prove that 9x^2 + 30x + 28 has no zeroes.........
Gopika Babu , 9 Years ago
Grade 9
9 grade maths> How to prove that 9x^2 + 30x + 28 has no ...
1 AnswersSourabh Singh
Hii
this is a quadratic equation whose real roorts will only occur if the discriminant opf the given quadratic is less than zero .
If D is less than zero then the real roots will not exist..In this case 900- 36*28 = -108.
Hence no real root
this is a quadratic equation whose real roorts will only occur if the discriminant opf the given quadratic is less than zero .
If D is less than zero then the real roots will not exist..In this case 900- 36*28 = -108.
Hence no real root
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Other Related Questions on 9 grade maths
What are the differences between similar triangles and congruent triangles?
What are the differences between similar triangles and congruent triangles?
9 grade maths
1 Answer Available
Last Activity: 9 Months ago
All real numbers are rational numbers.
A) True
B) False
All real numbers are rational numbers.
A) True
B) False
9 grade maths
1 Answer Available
Last Activity: 9 Months ago
The L.C.M of the smallest 2 digit composite number and the smallest composite number is:
- (a) 12
- (b) 4
- (c) 20
- (d) 44
The L.C.M of the smallest 2 digit composite number and the smallest composite number is:
- (a) 12
- (b) 4
- (c) 20
- (d) 44
9 grade maths
1 Answer Available
Last Activity: 9 Months ago
Are all natural numbers also whole numbers?
Are all natural numbers also whole numbers?
9 grade maths
1 Answer Available
Last Activity: 9 Months ago