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Nutka1998 [239]
2 years ago
12

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

Mathematics
2 answers:
liberstina [14]2 years ago
8 0

Answer:

c = 6.25

Step-by-step 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

valentinak56 [21]2 years ago
6 0

Answer:

c=-9x^2-15x

Step-by-step explanation:

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