304,445 views
32 votes
32 votes
Use completing the square to solve the equation x2 - 10x = -8.

Which equation is used in the process?

x 2 - 10x + 25 = 17
x 2 - 10x + 25 = -8
x 2 - 10x - 25 = -33

User Jon Martin
by
2.7k points

2 Answers

15 votes
15 votes

Answer:

The first person that told the answer has it correct so beleive the answer

Explanation:

User AmitG
by
3.2k points
7 votes
7 votes

Answer:

x^2 - 10x + 25 = 17

Explanation:

x^2 - 10x = - 8

Now x^2 - 10x = (x - 5)^2 - 25, so

(x - 5)^2 - 25 = -8

(x - 5)^2 = -8 + 25

x^2 - 10x + 25 = 17..

User Pawel Czyz
by
2.9k points