Is this correct

Question

Is this correct

zarkam21 · Answer

attachment

misty1212 · Answer

Hi again
you know you can check the asnwers yourself right? on the computer

misty1212 · Answer

oh btw i think this is wrong `

zarkam21 · Answer

This is a different problem, I understand the concept for those problems now

misty1212 · Answer

$$ax^2+bx+c=0\
4x^2+5x+4=0\
a=4,b=5,c=4$$

misty1212 · Answer

compute $$b^2-4ac$$ which in this case is $$5^2-4\times 4\times 4$$

misty1212 · Answer

i get $$-39$$ how about you ?

zarkam21 · Answer

Yup just checked on my calculator

zarkam21 · Answer

I got -39 as well

misty1212 · Answer

ok so it is negative, that is the important part 
that means there are two COMPLEX solutions

zarkam21 · Answer

So it wouldn't be "two negative" It would be complex?

misty1212 · Answer

if you use the quadratic formula you would get $$x=\frac{-5\pm\sqrt{-39}}{8}$$with a negative number under the square root symbol, meaning two complex solutions

misty1212 · Answer

no not "two negative" 
two complex

misty1212 · Answer

$$b^2-4ac$$is called the discriminant for $ax^2+bx+c=0$ 
if it is negative, two complex solutions

zarkam21 · Answer

Oh okay, I think I'm understanding now

misty1212 · Answer

yay $$\large \color\green\heartsuit$$

zarkam21 · Answer

So because of the negative number under the square root symbol. it would be two complex solutions

misty1212 · Answer

yes, that is right

zarkam21 · Answer

Thanks beautiful

misty1212 · Answer

yw darling