4 years ago

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

Mathematics

1 answer:

defon4 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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