I'm sorry I'm not sure which topic this is from.

Express x^{2}+8x+5=0 in the form (x+p)^{2}+q=0

Thank you so much

Ashreeta
Sep 11, 2017

#1**+2 **

For this equation, you will need to complete the square.

x^2 + 8x +5 = 0.

Add (b/2)^2 to get... (Because you added 16 to the left side of the equation, you have to add 16 to the right side of the equation as well. And in this case, (b/2)^2 is 16.

(x^2 +8x + 16) + 5 = 16

Factor to get...

(x+4)^2 +5 = 16.

Subtract both sides by 16 to get...

**(x+4)^2 -11 = 0.**

Does anyone know how to write exponents in Windows 10?

Gh0sty15
Sep 11, 2017