Question 176370
{{{x-(1/8)sqrt(7)=2}}}
:
{{{8x-sqrt(7)=16}}}multiplied all terms by 8
:
{{{sqrt(7)=8x-16}}}adjusted terms so sqrt was isolated
:
{{{sqrt(7)^2=(8x-16)^2}}}squared both sides
:
{{{7=64x^2-128x-128x+256}}}multiplied terms
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{{{64x^2-256x+249=0}}}combined terms and place all terms on one side
:

2.33 is the answer
:
1.67 is and extraneous root
*[invoke solve_quadratic_equation 64, -256, 249]