james234886 james234886

05-02-2019
Mathematics

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solve for x by completing the square. 2x^2-4x+7=0

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mathecoach mathecoach

05-02-2019

Answer:

2x^2 - 4x + 7 = 0

x^2 - 2x + 3.5 = 0

x^2 - 2x = - 3.5

x^2 - 2x + 1 = 1 - 3.5

(x - 1)^2 = - 2.5

No solution because a quadratic term can't be negative.

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