Question

Use the technique of completing the square to transform the quadratic equation into the form (x + c)2 = a.

9x2 - 18x - 45 = 0

Answer 1

9*(x-1)^2-54=0

so now add 54

9*(x-1)^2=54

Div by 9

(x-1)^2=54/9

Answer 2

(x – 9)2 = 15 <<<--- Would this be the answer?

Answer 3

(x-9)^2=6

Answer 4

I'm sorry, it's not listed on the answers; this is like college work, and I'm still in High School.

Answer 5

it's HS :)

Answer 6

\[9x ^{2}-18x-45=0\]
\[x ^{2}-2x-5=0\]
\[x ^{2}-2x+1-6=0\]
\[(x-1)^{2}-6=0\]
\[(x-1)^{2}=6\]