Question 54371
164=x^2+(x+2)^2 or 164=x^2+x^2+4x+4 or 2x^2+4x+4-164 or x^2+2x-80 or

(x+10)(x-8)=0 or x=-10 & x=8 proof 8^2+(8+2)*2=164 or 64+100=164 or 164=164