Question

(R-5) square=(R+2) square what is the value of R in decimal

Answer 1

`(R-5)^2=(R+2)^2\\R-5=R+2 \vee R-5=-R-2`

The first equation obviously doesn't have a solution.

`R-5=-R-2\\2R=3\\R=(3)/(2)=1.5`