+71 I'm sorry I'm not sure which topic this is from.
Express x2+8x+5=0 in the form (x+p)2+q=0
Thank you so much
+590 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?
