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pantera1 [17]
3 years ago
6

F (x) = -3x+5x^2+8 has blank roots.

Mathematics
1 answer:
defon3 years ago
7 0

Answer:

F (x) = -3x+5x^2+8 has complex roots.

Step-by-step explanation:

number of roots?

ok.

f(x) =   5xx - 3x + 8  =   5xx + 5x  - 8x  + 8   ( I was guessing what numbers would sum to -3)

nope.

ok try discriminant:    (-3)^2 - 4*5 * 8 =   9 - 160  < 0

2 complex roots

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