a) x^2 + 81 - 18x - 8x - 208 + x^2 - 26x = 2x^2 - 127 - 52x
б) a^2 + 4 + 4a - a^2 + 9 - 4a + 20 = 33
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a) x^2 + 81 - 18x - 8x - 208 + x^2 - 26x = 2x^2 - 127 - 52x
б) a^2 + 4 + 4a - a^2 + 9 - 4a + 20 = 33