rachelle200612 rachelle200612

24-06-2021
Mathematics

contestada

If using the method of completing the square to solve the quadratic equation x^2+8x+11=0, which number would have to be added to "complete the square"?

Respuesta :

pketlele03 pketlele03

24-06-2021

Answer:

4

Step-by-step explanation:

x²+8x+11=0

x²+8x+(+4)²-(+4)²+11=0

Answer Link

mhs23cranei mhs23cranei

31-01-2022

Answer:

16

Step-by-step explanation:

x2+8x= −11−11

28=4→(4)2=16

x2+8x+16=x2+8x+16= −11+16−11+16

(x+4)2= 55

16

Answer Link

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