Question

What is the nature of the roots of the equation 4n2 + 8n = -7?

Answer 1

@phi

Answer 2

@karatechopper

Answer 3

1.two imaginary roots
2.one real, irrational root
3.one real, rational root
4.two real, irrational roots

Answer 4

@jim_thompson5910

Answer 5

Hint: use the discriminant formula

D = b^2 - 4ac

Answer 6

in this case, a = 4, b = 8 and c = 7

Answer 7

thanks :)

Answer 8

np

Answer 9

wait how do i tell what answer it is

Answer 10

what value did you get for the discriminant D

Answer 11

i got -48

Answer 12

it's negative, so you have no real solutions (ie you have 2 imaginary solutions)

Answer 13

if it were 0, then you'd only have one real solution

Answer 14

if it were positive and not a perfect square, then you would have 2 irrational solutions

if it were positive and a perfect square, then you would have 2 rational solutions

Answer 15

is it 2.?

Answer 16

check through what I said above

Answer 17

i did. So its 1. right? because its has no real solution

Answer 18

yes choice 1 is your answer

Answer 19

thanks