2012 · Q52
If one of the roots of quadratic equation 7x^2 - 50x + k = 0 is 7, then what is the value of k?
Elementary MathematicsAlgebra
- A7
- B1
- C50/7
- D7/50
Explanation
7*49 - 50*7 + k = 0 gives k = 7.
If one of the roots of quadratic equation 7x^2 - 50x + k = 0 is 7, then what is the value of k?
Explanation
7*49 - 50*7 + k = 0 gives k = 7.