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

User Siddi
by
6.8k points

1 Answer

7 votes

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

User Alben
by
7.8k points
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