Question

solve
3 + sqrt z-7=sqrt z+8

Answer 1

is that right ? check again!

Answer 2

I don't think your question is right.

Answer 3

3+sqrt(z-7)=sqrt(z+8) squared
9+6sqrt(z-7)+7=z+8
6sqrt(z-7)=z-8 squared
36(z-7)=z2 -16z +64
36z - 252=z2 -16z +64
z2 -52z +316=0
z1,2=(52+/- sqrt(2704 - 1264))/2 =(52+/- sqrt1440)/2 =(52+/- 12sqrt10)/2 =
= 26+/- 6sqrt10

Answer 4

can you please right the equation as it is because it looks vague