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(8z − 9)(8z + 9) = az2 − b what is the value of a? rewards
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5 votes
(8z − 9)(8z + 9) = az2 − b what is the value of a? rewards

User Ignat
by
7.0k points

2 Answers

5 votes
solve for a.

(8z−9)(8z+9)=az2−b

Flip the equation.

az^2−b = 64z2−81

Add b to both sides.

az2−b+b=64z2−81+b

az2=64z2+b−81

Divide both sides by z^2.

az^2/z^2 = 64z2+b−81 / z^2

a=64z^2+b−81 / z^2

User Divy Soni
by
6.2k points
1 vote

(8z-9)(8z+9)=az^2-b\ \ \ \ |add\
User Frank Niessink
by
7.4k points
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