OpenStudy (anonymous):

Which of the following is a solution of x2 + 6x = -22?

do you mean 2x?

OpenStudy (anonymous):

no, it is x2, as in 1x^2

OH ok

OpenStudy (anonymous):

the answer isn't pretty, so you'll have to use the quadratic formula, do you know it?

OpenStudy (anonymous):

-b =/- sqrt$-b \pm \sqrt{-b^2-4ac }$

OpenStudy (anonymous):

divided by 2a

OpenStudy (anonymous):

@pking8786

OpenStudy (anonymous):

@sidsiddhartha @hackworthaustin123

OpenStudy (anonymous):

That's the one, and the coefficients are ax^2 + bx+c so $-6\pm \sqrt{36-(4*1*22)}/2a$

OpenStudy (anonymous):

I've just worked it out, and are you sure you've not got a sign wrong/ because the one you gave doesn't have a solution. had it been +22 (thus making x2+6x-22=0) then you would have some answers

OpenStudy (anonymous):

-3 ± i -3 ± i -6 ± i -6 ± i

OpenStudy (anonymous):