I want to do line 25 and line 26. I have error. Thanks you

Question

Doing line 25 and 26.
https://code.sololearn.com/W4Zk5ht9KQLW/?ref=app

Answer 1

Use single quotes inside double quotes .

"<strong>Create definition function suite arithmetique term: U<em class='one'>1</em> = U<em class='two'>0</em> + raison.</strong>";