Questions 12 and 15Show work please :)Thank you!!

Question 12) Find the equation of the curve whose slope is given by m = 3x2 + 6x + 4 and passes through the point (3, - 4). Express your answer in the form y = Ax3 + Bx2 + Cx + D Question 15) A particle moves with acceleration given by a = 12t + 2. Given that at = 75. v =4. and s = 90, find the equation that describes the particle's displacement at any time t. Express the answer in the form s = At3 + Bt- - Ct - D