Benaddi mohamed collge elhansaliazilal =-~-- ; ,~- J;-= --';- ( )( )( )( )( )2 22 2 22 2 222b a b a b ab ab a b ab ab a b akb ka b a k- = - ++ - = -+ + = ++ = + . ^---' ( ) ( ) ( )10 14 59 1 12 2 43 3 2 2 2 1 2 3 2 122 22 2 2 2 2+ + =+ + + + + =+ + + + + = + + +x xx x x xx x x x x x ( )( ) ( ) ( ) ( )24 35 384 20 28 7 49 34 28 49 20 7 34 28 49 20 5 12 3 2 7 4 5 322 22 22 2 2- - - =- - - - - =- - - - - =+ + - - + - = + - - +x xx x x xx x x xx x x x x x x x ,-,-- 1.( ) ( )= + + +2 24 3 3 x x2.( ) ( )= - + +2 23 5 4 x x3.( ) ( )= + + -2 28 5 15 10 x x4.( )( ) ( )= - + + +27 6 3 2 5 x x x5.( )( ) ( )= - + - -23 9 7 8 4 2 x x x6.( )( ) ( )= - - - -23 8 5 7 3 x x x7.( ) ( )= - - -2 213 3 11 12 x x8.( ) ( )( ) = + - - - 4 3 5 5 32x x x9.( )( ) ( )( ) = + - - - + 3 5 3 5 4 6 2 3 x x x x10. ( )( ) ( )= + - - +22 3 5 6 5 6 x x x1. ( ) ( ) ( ) ( )25 30 1016 24 9 9 616 24 9 9 6 4 3 322 22 2 2 2+ + =+ + + + + =+ + + + + = + + +x xx x x xx x x x x x 2. ( ) ( ) ( ) ( )25 22 269 30 25 16 8 3 5 422 2 2 2+ - =+ - + + + = - + +x xx x x x x x 3. ( ) ( ) ( ) ( )250 220 16464 80 25 225 300 100 8 5 15 1022 2 2 2+ - =+ + + + - = + + -x xx x x x x x 4. ( )( ) ( ) ( ) ( )79 13 749 14 12 6 30 15 7 6 3 2 522 2 2+ + =+ - + + + + = - + + +x xx x x x x x x x 5. ( )( ) ( ) ( ) ( )109 100 259 54 81 28 32 14 16 3 9 7 8 4 222 2 2+ - =+ - + + - - = - + - -x xx x x x x x x x 6. ( )( ) ( ) ( ) ( )24 74 719 48 64 7 15 269 48 64 5 7 15 21 3 8 5 7 322 22 2 2- + - =- + - - - =+ - - + - - = - - - -x xx x x xx x x x x x x x 7. ( ) ( ) ( ) ( )113 86 25169 78 9 121 164 144169 78 9 121 164 144 13 3 11 1222 22 2 2 2+ - - =- + - + - =+ - - + - = - - -x xx x x xx x x x x x 8. ( ) ( )( ) ( ) ( )11 41 283 20 11 25 30 94 3 20 15 25 30 9 4 3 5 5 322 22 2 2- - =+ - - + - =- - + - + - = + - - -x xx x x xx x x x x x x x 9. ( )( ) ( )( ) ( ) ( )1 139 5 8 189 5 8 12 12 18 3 5 3 5 4 6 2 322 22 2+ =+ - - =- - - + - = + - - - +xx xx x x x x x x x 10. ( )( ) ( ) ( ) ( )29 12 274 12 9 25 364 12 9 25 36 2 3 5 6 5 622 22 2 2- - =- - - - =+ + - - = + - - +x xx x xx x x x x x