An expression might be: 2354h / 3hrs. You can make the real division sign if you're using paper. Hope this helped :)
Ok so this is a difference of 2 perfect squares
1=1^2
49c^2=(7c)^2
to factor you remember
a^2-b^2=(a+b)(a-b) so
1^2-(7c)^2=(1+7c)(1-7c)
Answer:
c
Step-by-step explanation: