Question 729906
solve:(sqrt)(x-15)=(sqrt)(x)-1
√(x-15)=√x-1
square both sides
x-15=(x-2√x+1)
2√x=16
square both sides again
4x=256
x=64
Check:
√(x-15)=√x-1
√64-15)=√64-1
√49=8-1
7=7