If 1/2 is a root of the equation.

If is a root of the equation x² + kx – = 0, then the value of k is
(a) 2
(b) -2
(c)
(d)

Solution:

If is a root of the quadratic equation 4x² – 4kx + k + 5 = 0, then the value of k is
(a) -6
(b) -3
(c) 3
(d) 6

Solution:

More Solutions:

• Two consecutive natural numbers such that.
• Two positive consecutive even integers is 288, find integers.
• The sum of two numbers is 9 and the sum of their squares is 41.
• Sum of two natural numbers is 8 and the difference of their reciprocals.
• There are three consecutive positive integers.