Решите уравнения (29-31): 29.1) (x + 2)² - (x² +2²) - 2³ = 0; 2) (3 + x)² - (x² + 3²) - 3² = 0; 3) 0,5 (0,5 + 2x) + x²-10- (x² +0,25) = 0; 4) x x 4 x (x + 1² ) + = 0. 3 9 3 4 4 9 22 + x​
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