Question

What are the solutions of 3x2 + 4x = -5?

a. the quantity negative 4 plus or minus i square root of 66 all over 6

b. the quantity negative 2 plus or minus 2i square root of 66 all over 3

c. the quantity negative 2 plus or minus i square root of 11 all over 3

d. the quantity negative 4 plus or minus i square root of 11 all over 6

Answer 1

hi

Answer 2

for the general equation ax^2 +bx+c,
\[x= \frac{ -b \pm \sqrt{b ^{2}-4*a*c} }{ 2*a }\]

Answer 3

yah i got \[-4±\sqrt{4^2-4*(3)*(5)}\div6\]

Answer 4

well over 6

Answer 5

yeah you are doing good
what will be next step?

Answer 6

simlify right?

Answer 7

yeah do the simplification

Answer 8

\[x=\frac{ -2±\sqrt{16-60} }{3 }\]

Answer 9

?

Answer 10

@niksva

Answer 11

\[\frac{ -4\pm \sqrt{16-60} }{ 6 }\]

Answer 12

\[\frac{ -4\pm \sqrt{-44} }{ 6 }\]
\[\frac{ -4\pm2\sqrt{11}i }{ 6 }\]
\[\frac{ -2\pm \sqrt{11}i }{ 3 }\]

Answer 13

ohhhhhh ok thank you so much man :)

Answer 14

I got a 100% on my quiz bc you helped me @niksva :)))))))))))))