Question

X^(2) + 6x - 9 = 0
solve by completing the square
write in (x+h)^2 = k form

Answer 1

Explanation:

`{x}^(2) + 6x - 9 = 0`

ADDING 18 ON BOTH SIDES

`{ x }^(2) + 6x - 9 + 18 = 0 + 18`

`{x}^(2) + 6x + 9 = 18`

`{(x)}^(2) + 2(x)(3) + {(3)}^(2) = 18`

`{(x + 3)}^(2) = 18`