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-11x + 6x - 12 = 4x - 35 + 14x
-5x - 12 = 18x - 35
-5x - 18x = - 35 + 12
-23x = -23/:-23
x = 1
(x-½)²+(x+½)²=2(x-√6)(x+√6)
x² - 1x+ 1/4 + x² + 1x + 1/4 = (2x -2√6)(x+√6)
2x² + 2/4 = 2x² + 2√6x - 2√6x + 12
2x² - 2x² = -12 - 2/4
0 = -12½