h(5+x) = sqrt(5+3x) +sqrt (5 + 3x-10) = sqrt (3x +5) + sqrt (3x-5)
h(5-x) = sqrt(5-3x ) + sqrt(5 - 3x-10) = -sqrt (3x + 5) -sqrt(3x+5)
h(5+x) +h(5-x) = 0
h(5+x) = sqrt(5+3x) +sqrt (5 + 3x-10) = sqrt (3x +5) + sqrt (3x-5)
h(5-x) = sqrt(5-3x ) + sqrt(5 - 3x-10) = -sqrt (3x + 5) -sqrt(3x+5)
h(5+x) +h(5-x) = 0