Question

10) Use the equation x2 + 8x = 9 to answer the following questions (1 point for each part, 2 points total). .

a. What number should be added to both sides of the equation to complete the square?
b. Solve for x by completing the square.

Answer 1

i might be wrong but i think its 10

Explanation:

x2+8x=9

collet terms

10x=9

divide both side by 10

x = 9/10

alternative form

x = 0.9