janyyxy janyyxy

10-06-2021
Mathematics

contestada

what number must you add to complete the square? x^2+28x=11

Respuesta :

60010664 60010664

10-06-2021

Answer:x

=

−

14

+

3

√

23

,

−

14

−

3

√

23

Step-by-step explanation:

Answer Link

MisterBrainly MisterBrainly

02-08-2022

x²+28x+11

To complete 2ab of (a+b)²

2ab=28x
2x(b)=28x
b=28x/2x
b=14
b²=196

196 must be added on both sides to get complete square as (x+14)²

Answer Link

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