For which value of $k$ does $k x^{2} + 4 x + 1 = 0$ have exactly one real root?

Practise more Arithmetic, Algebra, Geometry and Trigonometry.

Free questions with an explanation for every one, and full timed UNI Admission Exam (Peru) mock tests.

All Arithmetic, Algebra, Geometry and Trigonometry questions Take a mock test

More Arithmetic, Algebra, Geometry and Trigonometry questions

What is the least common multiple of $12$ , $18$ and $30$ ?
A price rises by $20%$ and the new price then falls by $20%$ . Compared with the original price, the final price is:
If $A : B = 3 : 5$ and $B : C = 2 : 3$ , and $C = 45$ , what is $A$ ?
A car travels $120$ km at $60$ km/h and then another $120$ km at $40$ km/h. Its average speed for the whole trip is:
Pipe $A$ fills a tank in $12$ hours, pipe $B$ fills it in $24$ hours and drain $C$ empties it in $36$ hours. With all three open, the tank f…
A sum of $2000$ is invested for $2$ years at $10%$ per year, compounded annually. The final amount is:

For which value of k does kx… | UNI Admission Exam (Peru)