Home  / Mathematics
Algebra
Arithmetic
Aptitude

If the quadratic equation 3x² - 12x + k = 0 has roots that differ by 2, what is the value of k?

A. 18
Posted in:  Quadratic Equations -  Algebra -  Mathematics

For the quadratic equation 2x² - 4x + k = 0 to have real roots, what must be the minimum value of k?

B. 2
Posted in:  Quadratic Equations -  Algebra -  Mathematics

What is the L.C.M. of the polynomials x^2 - 1 and x^2 + 1?

A. (X^2 - 1)(X^2 + 1)
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics

Which of the following expressions is equivalent to (3x^2 + 6x) ÷ 3x?

A. X + 2
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics

If the equations 3x + 4y = 12 and 6x + 8y = k have infinitely many solutions, what is the value of k?

A. 24
Posted in:  Linear Equations -  Algebra -  Mathematics