X^2+10x-88=8
where is the mistake and what should be done differently?​

Step-by-step explanation:

a) There's a mistake at the third step from the beginning.

b) Instead of adding 25 , Josh added 100. While solving an equation using "Completing Squares Method" , we need to write the L.H.S. in the form of    or   , so that in the next step it can be converted into or .

c)

Taking -88 to R.H.S. , it's sign changes and becomes +88.

Using "Completing Squares Method" , L.H.S.  can be written as :-

1st part is 64,000,000

2nd part 500,000

step-by-step explanation: