Question

I need help with 5 problems please ! Its solving quadratic equations with complex solutions.
Heres the first one:
1. Solve -3x2 - 4x - 4 = 0.

Answer 1

they are all multiple choice..

Answer 2

First multiple choice options:
A.\[2\pm4i \sqrt{2}\over 3\]
B.\[2\pm2i \sqrt{2} \over 3\]
C.\[-2\pm 2i \sqrt{2} \over 3\]
D.\[-2\pm 4i \sqrt{2} \over 3\]

Answer 3

Just a quick question but is it 3x or 3*2

Answer 4

3x

Answer 5

not 3 times 2 sorry for the confusion

Answer 6

this is one of four problems i need help with

Answer 7

So how do you get the problem to go from that to the multiple choice answers above..

Answer 8

It'll be A but it's really hard to convert

Answer 9

/: okay .. can you help me with the other ones too?

Answer 10

I sure can try

Answer 11

thats all i can ask!

Solve -3x2 + 30x - 90 = 0.

Answer 12

Did you see how I did the first one just do that post it then I'll help u convert it

Answer 13

Options:
A.\[5\pm2i\]
B.\[5\pm i \sqrt{5}\]
C.\[10\pm 2i \sqrt{5}\]
D.\[10\pm i \sqrt{5}\]

Answer 14

how did you get the 12 did you multiply the 2 and 4 or howd you get that

Answer 15

See you have two sets of numbers with a variable so you multiply them, or add them

Answer 16

okay so for the one i just posted..id multiply the -3x^2 and 30x?

Answer 17

Wait its add but the answer to the first one is still A

Answer 18

okay ! so for the second one we add the 3x^2 and 30x?

Answer 19

yes

Answer 20

so its 33x

Answer 21

okay and then after you add what do you do

Answer 22

its actually 27 because its a -3 is that correct?

Answer 23

@sean_davis0821

Answer 24

Oh yes u r right

Answer 25

and then after this step?

Answer 26

Sorry I about messed u up

Answer 27

its no problem. a simple error