Posted by Janice on .
Hoc can the factoring of 9x to the second power plus 18x plus 8, help factor 9a to the second power plus 18a plus 8b to the second power.

algebra 
Reiny,
9x^2 + 18x + 8
= (3x+4)(3x+2)
in 9a^2 + 18ab + 8b^2 , (notice I corrected your middle term...)
= (3a+4b)(3a+2b)
the variable itself does not matter, the coefficients are the important things.