Need clarification on question 8-10 please. Thank you

D Question 8 7 pts Calculate ify = (10x2 + x)(x -x2) dx O dy = (20x + 1)(1 - x) + (x -2x2)(10x2 +x) O dy = - 40x2 + 22x + 1 dx dx O dy = (20x + 1)(x - x2)-(1 -2x)(10x2 -x) dx o dy = (20x + 1)(1 -x) + (x-x2)(10x2 +x) dx O dy = (20x + 1)(x - x2) +(1 -2x)(10x2 +x) D Question 9 7 pts Calculate the derivative of the function: g(x) = (2x2 + 2x+3) -3 O g'(x ) = - 12(2x2 + 2x + 3) -4 O g' ( x ) = (-6x2 +6x+9) -4 O g' ( x ) = - 3(4x+2)(2x2 + 2x+ 3) O g' ( x) = - 3(2x2 + 2x+ 3 ) -4 O g' ( x ) = - 3( 4x + 2) (2x2 + 2x+ 3) - 4 D Question 10 7 pts Find the derivative of the following function: f(x) = In(5x -9) Of ( x ) = = 45 5x - 9 9 Of' ( x ) = 5 X - 9 Of ( x ) = 5x -9 Of' ( x ) = 5 x - 9 O None of the above