EASY
10th CBSE
IMPORTANT
Earn 100

If the equation, 9x2+6kx+4=0 has equal roots, then k=?

50% studentsanswered this correctly

Important Questions on Quadratic Equations

EASY
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 4 - Quadratic Equations>TEST YOURSELF>Q 18
If the equation x2+2(k+2)x+9k=0 has equal roots then k=?
EASY
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 4 - Quadratic Equations>TEST YOURSELF>Q 19
If the equation 4x2−3kx+1=0 has equal roots, then k=?
EASY
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 4 - Quadratic Equations>TEST YOURSELF>Q 20
The roots of ax2+bx+c=0,a≠0 are real and unequal, if (b2−4ac) is
EASY
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 4 - Quadratic Equations>TEST YOURSELF>Q 21
In the equation, ax2+bx+c=0, it is given that D=(b2−4ac)>0. Then the roots of the equation are
EASY
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 4 - Quadratic Equations>TEST YOURSELF>Q 22
The roots of the equation 2x2−6x+7=0 are
EASY
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 4 - Quadratic Equations>TEST YOURSELF>Q 23
The roots of the equation 2x2−6x+3=0 are
EASY
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 4 - Quadratic Equations>TEST YOURSELF>Q 24
If the roots of 5x2−kx+1=0 are real and distinct then choose the correct option for k.
EASY
10th CBSE
IMPORTANT
Secondary School Mathematics for Class 10>Chapter 4 - Quadratic Equations>TEST YOURSELF>Q 25
If the equation, x2+5kx+16=0 has no real roots, then