Question

Does anyone know how to do this?!?

Rearrange to make z the subject of the formula

r=4-2(5-3z)^2

Answer 1

I believe the answer is:

r-4=-2(5-3z)^2

r-4/2= (5-3)^2

√r-4/2= 5-3z

-5+√r-4/2=3z

divide all by 3