Answer:
Ksp=[Ag+]^3[PO4^3-]
For every 1 mole silver phosphate dissolved, 3 moles Ag+ will be ionized so plug in 3x for [Ag+]. For [PO4^3-] only 1 mole will ionize so just 1x.
Ksp=[3x]^3[x]
Ksp=27x^4
x=1.82x10^-9.
Step-by-step explanation:
hope this helps also im sorry if it is to conffusing hard to explain