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Precalculus Mathematics Homework Help
Find all the ways of writing N into x^2-y^2
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[QUOTE="fresh_42, post: 6866381, member: 572553"] Whenever you see ##x^2-y^2## you can automatically write ##(x-y)(x+y).## Here we have the task to write $$ N = (x+y)(x-y) = 2\cdot 2 \cdot 2 \cdot 2 \cdot 7 $$ Hence, we have only two prime divisors ##p## of a product. What is a prime divisor? A number ##p## is called prime if ##p\,|\,a\cdot b## implies ##p\,|\,a## or ##p\,|\,b.## This is all you need. [/QUOTE]
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Precalculus Mathematics Homework Help
Find all the ways of writing N into x^2-y^2
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