Question

which of the following is a solution of x^2+6x=-22?
-2+i√10
-4+i√40
-2-i√40
-4-i√10

What are the solutions of 2x^2+3x=-8?
-3± i√41/4
-3± i√55/4
-3± i√21/4
-3± i√15/4

Answer 1

@jim_thompson5910 @Hero
Can you help me out please?

Answer 2

Do you know the quadratic formula?

Answer 3

Or do you want to solve by completing the square?

Answer 4

for \[\Large ax^2+bx+c = 0\] the quadratic formula is\[\Large x=\frac{ -b \pm \sqrt{b^2 - 4ac} }{2a }\]unless you have to complete the square...

Answer 5

x^2+6x=-22
first you'll have to get everything on one side, so it's equal to zero

Answer 6

^add 22 to both sides

Answer 7

thank you <333

Answer 8

u getting it?

Answer 9

@agent0smith