faithfuller2018 faithfuller2018

21-06-2018
Mathematics

contestada

If (9x − 4)(9x + 4) = ax2 − b, what is the value of a?

The value of a is _____________.

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BlakeMATH BlakeMATH

21-06-2018

Your answer should be 81 for a. I got this result by multiplying 9 by 9.

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