MEDIUM
10th CBSE
IMPORTANT
Earn 100

Find the roots of the following quadratic equations by the factorisation method.

3x2+55x10=0

Important Questions on Quadratic Equations

MEDIUM
10th CBSE
IMPORTANT

Find the roots of the following quadratic equations by the factorisation method.

21x22x+121=0

MEDIUM
10th CBSE
IMPORTANT

Find whether the following equations have real roots. If real root exist, Find them

8x2+2x-3=0

If a and b are the roots then, find 16k if a2+b2=k.

MEDIUM
10th CBSE
IMPORTANT

Find whether the given equation have real roots. If real root exist, Find them

-2x2+3x+2=0

If a and b are the roots of the equation then find 4k if a2+b2=k

MEDIUM
10th CBSE
IMPORTANT

Find whether the following equations have real roots. If real root exist, Find them
5x2-2x-10=0

If one of the root is 1-k5, find k

HARD
10th CBSE
IMPORTANT

Find whether the following equations have real roots. If real root exist, Find them.

12x-3+1x-5=1, x32, 5

If one of the root is 4+6k, then find k?

HARD
10th CBSE
IMPORTANT

Find whether the following equations have real roots. If real root exist, Find them

x2+55x-70=0

If one of the root is 2k, find k

MEDIUM
10th CBSE
IMPORTANT

Find a natural number whose square diminished by 84 is equal to thrice of 8 more than the given number.

 

MEDIUM
10th CBSE
IMPORTANT

A natural number, when increased by 12, equals 160 times its reciprocal. Find the number.