strickla574 strickla574

26-04-2022
Mathematics

contestada

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

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Аноним Аноним

26-04-2022

Step-by-step explanation:

[tex]{x}^{2} + 6x - 9 = 0[/tex]

ADDING 18 ON BOTH SIDES

[tex] { x }^{2} + 6x - 9 + 18 = 0 + 18[/tex]

[tex] {x}^{2} + 6x + 9 = 18[/tex]

[tex] {(x)}^{2} + 2(x)(3) + {(3)}^{2} = 18[/tex]

[tex] {(x + 3)}^{2} = 18[/tex]

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