Question

Solve the equation by completing the square. Round to the nearest hundredth if necessary.

x^2 + 10x = 18

Answer 1

These are ancient to me but I'll try,
Subtract both sides by 18
x^2+10x-18=0
Divide 'b' by 2, simplify x^2 and 5x you get (x+5)^2, square '5', you get 25,
\((x+5)^2-25-18=0\)

Answer 2

Finish it up

Answer 3

OK

Answer 4

Wait, I forgot to list the answer choices.

The choices are:

A. -11.56, 1.56
B. 11.56, 1.56
C. -11.56, -1.56
D. 11.56, -1.56

I'll try and finish the equation now:

So I would distribute the exponent, so that makes x^2 + 25 - 25 - 18 = 0

then I would do the edition/subtraction: x^2 - 18 = 0

and now I would add 18 to both sides? x^2 = 18

but then x would equal 4.24......so that's wrong