4.(\(x\) + 1)2 + (2\(x\) - 1)2 - 8.(\(x\) - 1)(\(x-1\) )= 11
4\(x^2\) + 8\(x\) + 4 + 4\(x^2\) - 4\(x\) + 1 - 8\(x^2\) + 16\(x\) - 8 = 11
(4\(x^2\) + 4\(x^2\) - 8\(x^2\)) + (8\(x\) - 4\(x\) + 16\(x\)) + (4 + 1 - 8) = 11
20\(x\) - 3 = 11
20\(x\) = 11 + 3
20\(x\) = 14
\(x\) = \(\dfrac{7}{10}\)