Algebramedium · Past Paper
The sum of the roots of 0.2x^2 - 0.4x + 0.1 = 0 is:
A2
B-2
C0.5
D4
✓ Correct Answer: A — 2
Sum = -(-0.4)/0.2 = 0.4/0.2 = 2.
Share this question
More from Algebra
- Identify the type of polynomial: f(x) = x^2 - 9.
- If 3x + 4y = 10 and 4x + 3y = 11, what is the value of x + y?
- If x + 7 = 2, what is the value of x?
- Five years ago, a father's age was 7 times his son's age. Five years hence, the father's age will be 3 times his son's age. Find the father's present age.
- The factorized form of 2ax + 2ay is: