use the discriminant to determine the type and number of solutions.
-3x^2+2x+4=0
A) 2 rational solutions
B) 2 imaginary solutions
C) 1 rational solution
D) 2 irrational solutions

Question

use the discriminant to determine the type and number of solutions.
-3x^2+2x+4=0
A) 2 rational solutions 
B) 2 imaginary solutions 
C) 1 rational solution 
D) 2 irrational solutions

jhannybean · Answer

The discriminant is $$\large b^2-4ac$$

jhannybean · Answer

$$\large b = 2 \ , \ a = -3 \ , \ c = 4 $$

luigi0210 · Answer

If it's positive/perfect square it has 2 real solutions
If it's 0 it has one repeating solution 
If it's negative it has no real solutions/2imaginary solutions

jhannybean · Answer

$$\large b^2-4ac = (2)^2-4(-3)(4) = ?$$

luigi0210 · Answer

Smartypants

jhannybean · Answer

Ty :)

anonymous · Answer

i get b^2-4ac=52

luigi0210 · Answer

Good

anonymous · Answer

so its C?

jhannybean · Answer

Nope. it's a positive outcome, hence what @Luigi0210 stated.