9b^2-6b-5

Question
Answer:
$\left(9b^2-6b+1\right)-5-1=\left(3b-1\right)^2-6$
$\left(3b-1\right)^2-\left(\sqrt{6}\right)^2=\left(3b-1-\sqrt{6}\right)\left(3b-1+\sqrt{6}\right)$
solved
general 11 months ago 683