Answer:
12 or 4
Step-by-step explanation:
h square -h(12+4)+48
h square-12h-4h+48=0
h(h-12)-4(h-4)=0
h-12=0 equation 1
h-4=0 equation 2
from eqn 1
h-12=0
h=12
from eqn 2
h-4=0
h=4
Therefore value of h=12,4
