Question

Solve for x (by factorization or otherwise): 9x^2 -9(a+b)x+(2a^2 5ab+2^b2)=0

Answer 1

Hey

--> [ ( 3x )² - ( 6a + 3b )x - ( 3a + 6b )x + ( 2a + b )( a + 2b ) ] = 0

--> 3x ( 3x - 2a - b ) - ( a + 2b )( 3x - 2a - b ) = 0
--> [ 3x - ( a + 2b ) ][ 3x - ( 2a + b ) ] = 0

=> 3x = ( a + 2b )    or   ( 2a + b )
=> x = ( a + 2b )/3 or ( 2a + b )/3 √√

^_^ Hope it helps 

Answer 2

plz refer to this attachment