You get everything you need from factoring the last expression:
The left side is a difference of squares, and we get another difference of squares upon factoring. We end up with
Plug in everything you know and solve for :
you spend $90 on books and movies. You pay $12 per book and $15 pr movie. YOu buy 3 more books than movies. How many of each ite
1 answer:
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Since the square has 4 sides, you only have to add 
four times.
The <span>perimeter of the square is: </span><span>
cm </span>
The <span>perimeter of the square is: </span><span>