Solve x2 + 6x = 9 for x by completing the square.a. x = β6b. x = 0 c. x equals plus or minus square root of 18 minus 3d. x = x equals plus or minus square root of 18 plus 3
Accepted Solution
A:
Answer: c. x equals plus or minus square root of 18 minus 3Step-by-step explanation:1. x^2+6x+(6/2)^2=9+(6/2)^22. (x+6/2)^2=183. (x+3)^2=18Answer: x= plus or minus root 18 minus 3Simplified would be x plus or minus 3 root 2 minus 3