What is the value of c so that 9x^2 + 15x + c = 0 has one rational solution

Question

asked Jun 1, 2023 113k views

2 Answers

Gaurav Navgire · Answer 1 · 2023-06-04T01:38:32+0000

Answer:

c = 6.25

Explanation:

For this to occur, the discriminant of the quadratic formula must = 0

b^2 - 4ac = 0

15^2 - 4(9)(c) = 0

36c = 225

c = 6.25