Use expression editor forsolution
Allow terms with degree > 1 to be defined without using a hash
Merge remote-tracking branch 'upstream/master' into sim-rat-exp-1
Merge remote-tracking branch 'upstream/master' into sim-rat-exp-1
Merge remote-tracking branch 'origin/master' into sim-rat-exp-1
Use expression editor
Merge pull request #70070 from petercollingridge/sim-rat-exp-1

Use expression editor for simplifying rational expressions 1