Respuesta :

solve for a.

(8z−9)(8z+9)=az2−b

Flip the equation.

az2−b=64z2−81

Add b to both sides.

az2−b+b=64z2−81+b

az2=64z2+b−81

Divide both sides by z^2.

[tex]\bold{ \frac{az^2}{z^2} = \frac{64z^2 + b - 81}{z^2}} \\ \\ a = \pmb{ \boxed{\boxed{\boxed{\frac{64z^2 + b - 81}{z^2} }}}}[/tex]


aliyahtannenbaum

The people that are answering this arn't doing it affectivly because there not realizing, B=2. Add that to there equation and simplify it.

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good job