Question

Determine the number and type of solutions for 5x2 + 1x + 7 = 0.

Answer 1

@hero

Answer 2

@sami-21

Answer 3

Do you know what 'discriminant' is?

Answer 4

nope

Answer 5

Given that an expression is \(ax^2 + bx + c\), then the discriminant is \(b^2 - 4ac\)

Answer 6

I just told it to you two seconds ago

Answer 7

Do you have any idea of what \(a,b,c\) are here in this case?

Answer 8

@hero....umm..i forget...remind me? :D

Answer 9

\[\Delta = b^2 - 4ac \]

Answer 10

lol and Parth just told it to you just now.

Answer 11

lol

Answer 12

\(D = b^2 - 4ac\)

Answer 13

k now that i know what a discriminant is...anyone mind telling me how to solve this... :)

Answer 14

@yummydum, keep repeating this to yourself

\(D = b^2 - 4ac\)

Answer 15

If D > 0, then we have two real solutions.
If D = 0, then we have one real solution.
If D < 0, then we have no real solutions.

Answer 16

\[D=-139\]

Answer 17

no real solutions...?

Answer 18

Yep.

Answer 19

So, we have two imaginary solutions.

Answer 20

1 Rational Double

2 Irrational

2 Rational

2 Complex

these are my choices...

Answer 21

Complex = Imaginary.

Answer 22

irrational?

Answer 23

oh...okay :D

Answer 24

Yeah. :)

Answer 25

thanks :)