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Luda [366]
3 years ago
5

Solve the equation by completing the square. 3x^2 -6+9=0

Mathematics
2 answers:
Debora [2.8K]3 years ago
8 0
The factored form would be (3x-9)(x-1)
The picture should help a bit
Alona [7]3 years ago
8 0
Divide through by 3:

\frac{3x^2 -6x+9}{3} = \frac{0}{3}  \newline \newline x^2 -2x+3=0

Complete the square:

x^2 -2x +1+3=+1

(x-1)^2+3=+1

(x-1)^2=-2

x-1=  \sqrt{-2}

x=-\sqrt{2} i+1

x=\sqrt{2} i+1
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