w2 + 16 = 8w, {0, 2, 4, 8}
when x=0, 0^2+16=8(0)
16=8, so 0 is NOT a solution
when x=2, 2^2+16=8(2)
8*2=16 and 2^2+16=20
16=20, therefore 2 is NOT a solution
when x=4, 4^2+16=8(4)
8*4=32 and 4^2+16=32
32=32, therefore 4 is our answer.
P.S
Please mark me as braniest!
