martinarianna7475 martinarianna7475

13-07-2018
Mathematics

contestada

solve the equation by completing the square x^2-18x+58=0

Respuesta :

trdanli2221 trdanli2221

13-07-2018

We want to add something to the right side of the equation to get 81.

x^2 - 18x + 81 = 23

The final step is to factor and subtract 23. (Subtracting 23 is a unnecessary, but whatever)

(x - 9)^2 - 23 = 0

So "x" = 9 + sqrt23

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charlielily10074 charlielily10074

04-03-2021

Answer:

they are right:)

Step-by-step explanation:

PLATO

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