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in this video Iamp;#39;d like to talk about how to label and then reference an equation for later so letamp;#39;s go back to the example that we had with the aligned environment we had to solve the equation 3x to the third plus 3x squared minus 6x and then we went and we did a bunch of algebraic steps we factored out a 3 we factored out an X that we factored 2x squared plus X minus 2 and then we figured out what the answers were so letamp;#39;s use the label command to label the equation reference command to reference it later and then for the therefore line weamp;#39;ll have no number because itamp;#39;s really not a step itamp;#39;s just kind of there so letamp;#39;s start with this one we can type in label and you have to do it before the double backslashes and weamp;#39;ll call this 3 because weamp;#39;ve factored out the 3 here weamp;#39;ll call this X when you factored out the X and this will just call it factor poly because we factored that polynomial and we donamp;#3
