EASY
10th CBSE
IMPORTANT
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Which of the following equations has two distinct real roots?

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Important Questions on Quadratic Equations

EASY
10th CBSE
IMPORTANT
Which of the following equations has no real roots?
MEDIUM
10th CBSE
IMPORTANT

Find the value(s) of k for which the following simultaneous linear equations have a unique solution

k-1x-3y=4, 3x-4k+1y=5

MEDIUM
10th CBSE
IMPORTANT
If k is a natural number and the roots of the equation x2+11x+6k=0 are rational numbers, then find the smallest value of k
MEDIUM
10th CBSE
IMPORTANT
Find the values of k for which the equation x2+5kx+16=0 has no real roots.
MEDIUM
10th CBSE
IMPORTANT
Find the value of k for which the equation 5x2-kx+1=0 has real roots
HARD
10th CBSE
IMPORTANT
If the equation x2+2cx+ab=0 has two distinct real roots, then prove that the equation x2-2a+bx+a2+b2+2c2=0 has no real roots.
EASY
10th CBSE
IMPORTANT
Solve the quadratic equation by factorisation: 23x2-13x-1=0
EASY
10th CBSE
IMPORTANT
Solve the quadratic equation by factorisation: 9x2-3a2+b2x+a2b2=0