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Mathematics 21 Online
OpenStudy (anonymous):

Help plz fan and medal If (8z − 9)(8z + 9) = az2 − b, what is the value of a? The value of a is ____________. Numerical Answers Expected!

OpenStudy (triciaal):

on the left do you recognize the difference of 2 squares? set equal to the right hand side and compare

OpenStudy (anonymous):

Nope

OpenStudy (triciaal):

ok, expand the left hand side and equate with the right hand side

OpenStudy (triciaal):

|dw:1435707750099:dw|

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