Question 14:
Show that 6x−6−2kx2=x2 has no real roots if k>14.
Solution:
Show that 6x−6−2kx2=x2 has no real roots if k>14.
Solution:
Question 15:
The quadratic equation x2+px+q=0 has roots –2 and 6. Find
(a) the value of p and of q,
(b) the range of values of r for which the equation x2+px+q=r has no real roots.
Solution:
The quadratic equation x2+px+q=0 has roots –2 and 6. Find
(a) the value of p and of q,
(b) the range of values of r for which the equation x2+px+q=r has no real roots.
Solution: