diff --git a/fixed_wide/src/zeroes.rs b/fixed_wide/src/zeroes.rs
index 97da6c9..865d7d3 100644
--- a/fixed_wide/src/zeroes.rs
+++ b/fixed_wide/src/zeroes.rs
@@ -17,10 +17,7 @@ macro_rules! impl_zeroes{
 				let radicand=a1.[<wide_mul_ $n _ $n>](a1)-a2.[<wide_mul_ $n _ $n>](a0)*4;
 				match radicand.cmp(&Fixed::<{$n*2},{$n*2*32}>::ZERO){
 					Ordering::Greater=>{
-						//start with f64 sqrt
-						//failure case: 2^63 < sqrt(2^127)
 						let planar_radicand=radicand.sqrt().halve_precision();
-						//TODO: one or two newtons
 						//sort roots ascending and avoid taking the difference of large numbers
 						match (a2pos,Self::ZERO<a1){
 							(true, true )=>[Ratio::new(-a1-planar_radicand,a2*2),Ratio::new(a0*2,-a1-planar_radicand)].into(),