Solve this question based on the example below, explain briefly how did you get everything...

10 ax 4 x3 - 4x 15 x( ( 4 x +5 ) dx x tux+ 20 Let A ( 2 x74 ) B x 4 4x + 20 x2 + 4x+ 20 x2+ 4X+20 4 x +5 = A ( 2x+4 ) +B JF X = - 2 4 (- 2) +5 =B - B + 5 = B B = -3 IF X = 0 , 4 ( 0 ) + 5 = A ( 2 ( 0 ) + 4 ) - 3 5 0= 4 A - 12 5 +3 = 4A A = 2 2 2* + 4 Lax x 2 + 4x +20 J (x 3 + 2 ) 2 + 42 - 2 In ( * ? + 4 * + 20 ) - 3 (9 ) aretian ( x12 It 4