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Quantitative Aptitude
List of top Quantitative Aptitude Questions on Quadratic Equations
If $9^{x^2+2x-3} - 4\bigl(3^{x^2+2x-2}\bigr) + 27 = 0$, then the product of all possible values of $x$ is:
CAT - 2025
CAT
Quantitative Aptitude
Quadratic Equations
The equations $3x^2 - 5x + p = 0$ and $2x^2 - 2x + q = 0$ have one common root. The sum of the other roots of these two equations is:
CAT - 2025
CAT
Quantitative Aptitude
Quadratic Equations
If $a, b, c$ and $d$ are integers such that their sum is $46$, then the minimum possible value of $(a - b)^2 + (a - c)^2 + (a - d)^2$ is:
CAT - 2025
CAT
Quantitative Aptitude
Quadratic Equations
If \( x^2 + 2(K+2)x + 36 = 0 \) has equal roots, then \( K = \)
APICET - 2024
APICET
Quantitative Aptitude
Quadratic Equations
If \( -4 \) is a root of the equation \( x^2 + ax - 4 = 0 \) and the equation \( x^2 + ax + b = 0 \) has equal roots, then what will be the value of \( \sqrt{a^2 + b^2} \)?
NPAT - 2021
NPAT
Quantitative Aptitude
Quadratic Equations
If \( \alpha \) and \( \beta \) are the roots of the equation \( 2x^2 + 5x + k = 0 \), and \( 4(\alpha^2 + \beta^2 + \alpha\beta) = 23 \), then which of the following is true?
NPAT - 2021
NPAT
Quantitative Aptitude
Quadratic Equations
If the roots of the equation \(x^2 - 2(1+3k)x + 7(3+2k) = 0\) are equal, where \(k<0\), then which of the following is true?
NPAT - 2020
NPAT
Quantitative Aptitude
Quadratic Equations
If a,b,c are real numbers then the roots of the equation
(x-a)(x-b)+(x-b)(x-c)+(x-c)(x-a)=0
are always
BITSAT - 2020
BITSAT
Quantitative Aptitude
Quadratic Equations
If α,β are the roots of
x²-2x-1=0,
then the value of α²β²-α²-β² is
BITSAT - 2020
BITSAT
Quantitative Aptitude
Quadratic Equations
If the roots of the equation \(x^2 - 2(1+3k)x + 7(3+2k) = 0\) are equal, where \(k<0\), then which of the following is true?
NPAT - 2020
NPAT
Quantitative Aptitude
Quadratic Equations
Which of the following statements is true about the solutions of the equation \(\lvert x^2 - 5x \rvert = 6\)?
NPAT - 2020
NPAT
Quantitative Aptitude
Quadratic Equations
Which of the following statements is true about the solutions of the equation \(\lvert x^2 - 5x \rvert = 6\)?
NPAT - 2020
NPAT
Quantitative Aptitude
Quadratic Equations
If the equations \( x^2 + px + 12 = 0 \), \( x^2 + qx + 15 = 0 \), and \( x^2 + (p+q)x + 36 = 0 \) have a common positive root, then what is the value of \( (2p - q) \)?
NPAT - 2020
NPAT
Quantitative Aptitude
Quadratic Equations
If a,b are non-zero roots of x²+ax+b=0, then the least value of x²+ax+b is
BITSAT - 2019
BITSAT
Quantitative Aptitude
Quadratic Equations
Which one of the following is not a quadratic equation?
BHU PET - 2019
BHU PET
Quantitative Aptitude
Quadratic Equations
The set of real numbers which satisfy the equation \( x^2 - 5x + 6 = 0 \) is:
BHU PET - 2019
BHU PET
Quantitative Aptitude
Quadratic Equations
If the equations \( x^2 + ax + 1 = 0 \) and \( x^2 - x - a = 0 \) have a real common root, then the value of \( b \) is
KEAM - 2018
KEAM
Quantitative Aptitude
Quadratic Equations
The solutions of \( x^{2/5} + 3x^{1/5} - 4 = 0 \) are
KEAM - 2018
KEAM
Quantitative Aptitude
Quadratic Equations
If the equations \( x^2 + ax + 1 = 0 \) and \( x^2 - x - a = 0 \) have a real common root, then the value of \( b \) is
KEAM - 2018
KEAM
Quantitative Aptitude
Quadratic Equations
The solutions of \( x^{2/5} + 3x^{1/5} - 4 = 0 \) are
KEAM - 2018
KEAM
Quantitative Aptitude
Quadratic Equations
If the equations \( x^2 + ax + 1 = 0 \) and \( x^2 - x - a = 0 \) have a real common root, then the value of \( b \) is
KEAM - 2018
KEAM
Quantitative Aptitude
Quadratic Equations
The solutions of \( x^{2/5} + 3x^{1/5} - 4 = 0 \) are
KEAM - 2018
KEAM
Quantitative Aptitude
Quadratic Equations
Let \( f(x) = px^2 + qx + r \), where \( p,q,r \) are constants and \( p \neq 0 \). If \( f(5) = -3f(2) \) and \( f(-4) = 0 \), then the other root of \( f \) is
KEAM - 2018
KEAM
Quantitative Aptitude
Quadratic Equations
If the equations \( x^2 + ax + 1 = 0 \) and \( x^2 - x - a = 0 \) have a real common root, then the value of \( b \) is
KEAM - 2018
KEAM
Quantitative Aptitude
Quadratic Equations
The solutions of \( x^{2/5} + 3x^{1/5} - 4 = 0 \) are
KEAM - 2018
KEAM
Quantitative Aptitude
Quadratic Equations
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