Question

X2+11x=-24

Answer 1

I assume by X2 you mean x squared (x^2)?

If so, write as ax^2+bx+c=0:

x^2 +11x +24 =0

in this case, a=1 because x^2 is not multiplied by a constant, b=11 and c=24.

To find the two solutions, use the formula:

x= (-b +ã4ac)/(2a)
x= (-b -ã4ac)/(2a)

Answer 2

Amendment: The square root sign was not properly processed by this website, it is supposed to say -b+ square root of 4ac for the first solution and -b- square root of 4ac for the second

Answer 3

Second amendment:

I see more got lost in formatting - this is what you get for using foreign version of Windows, apparently.

x= (-b +- sqrt(b^2 -4ac))/(2a)

Let us hope this works now. Sorry about the mess :-)