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

User Drew Steen
by
8.9k points

2 Answers

1 vote

Answer:2

Explanation:

User Doug Ray
by
7.6k points
6 votes

Answer:

Complex roots.

Explanation:

f(x) = 5x^2 - 3x + 8

The value of the discriminant will tell us how many roots and what type of roots this has:

b^2 - 4ac = (-3)^2 - 4*5*8

= 9 - 160

= -151.

This is negative so the equation has 2 complex roots.

User Jake Mulhern
by
8.3k points

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