-(a² + b²) |x| - (1 + 2) √(1 + 2) / (3 + 4)
|-| | | |+| / \ / \ |^| |^| / \ / \ / \ / \ a 2 b 2
|-| / \ / \ |abs| |+| | / \ | / \ x 1 2
|/| / \ / \ |√| |+| | / \ | / \ |+| 3 4 / \ 1 2