Question

Halla x. por favor urgente ​

Answer 1

TEOREMA DE PITÁGORAS:

$(x + 1) {}^{2} + (2x) {}^{2} = (x + 3) {}^{2} \\ {x}^{2} + 1 + 2x + 4 {x}^{2} = {x}^{2} + 9 + 6x \\ 5 {x}^{2} + 2x + 1 = {x}^{2} + 9 + 6x \\ 5 {x}^{2} - {x}^{2} = 9 + 6x - 2x - 1 \\ 4 {x}^{2} = 8 + 4x \\ x = 2$