Question

Найти произведение уровнения |х+1|=3​

Answer 1

$|x + 1| = 3\\ {x }^{2} + 1 = {3}^{2} \\ {x}^{2} = 9 - 1 \\ {x}^{2} = 8 \\ x = 2 \\ |1 + 2| = 3$