Explain how you would factor 9x^2 – 49 show your work and use complete sentences. what is this special type of factoring called?
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The square's diagonal is the triangle's hypotenuse.
the original Pythagorean theorem is
where a and b are the two sides and c is the hypotenuse.
that means the Pythagorean theorem for this question is:
or 
the original Pythagorean theorem is
that means the Pythagorean theorem for this question is: