0 = ( _ 2 q z %2B q v _ 9 %2B _ z v z ) %2B x ( q %2B v )

1.	0 = ( _ 2 q z %2B q v _ 9 %2B _ z v z ) %2B x ( q %2B v ) 6 - z ^ x 6
Answer» QUADRATIC RESOLUTION ★ GIVEN EQUATION : 9x² - 9( a+b)x + (2a² + 5ab + 2b² ) = 0 BY QUADRATIC FORMULA - 9 ( a + b ) ± √ 81(a+b)² - 4 (9)( 2a² + 5ab + 2b² ) / 2( 9 ) RESOLVING " D " SEPARATELY : 81 ( a + b ) ² - 4 ( 9 )( 2a²+5ab+2b² ) 81( a² + b² + 2ab ) - 36( 2a²+5ab+2b² ) 81a²+81b²+ 162ab - 72a²- 180ab - 72b² 9a² + 9b² -18ab = [3(a+b)]² D = [3(a+b)]² ; √D = 3( a+b ) 9( a+b ) ± 3 ( a + b ) / 18 yields two values or roots respectively , 2/3 ( a + b ) ; a+b /3

0 = ( _ 2 q z %2B q v _ 9 %2B _ z v z ) %2B x ( q %2B v ) 6 - z ^ x 6

Answer»

QUADRATIC RESOLUTION ★

GIVEN EQUATION : 9x² - 9( a+b)x + (2a² + 5ab + 2b² ) = 0

BY QUADRATIC FORMULA -

9 ( a + b ) ± √ 81(a+b)² - 4 (9)( 2a² + 5ab + 2b² ) / 2( 9 )

RESOLVING " D " SEPARATELY :

81 ( a + b ) ² - 4 ( 9 )( 2a²+5ab+2b² )

81( a² + b² + 2ab ) - 36( 2a²+5ab+2b² )

81a²+81b²+ 162ab - 72a²- 180ab - 72b²

9a² + 9b² -18ab = [3(a+b)]²

D = [3(a+b)]² ; √D = 3( a+b )

9( a+b ) ± 3 ( a + b ) / 18

yields two values or roots respectively ,

2/3 ( a + b ) ; a+b /3