Help for all questions on pictures explain how you found your answer and how much it will be all combined

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

Jim had 15 minutes to do 5 laps around his school what would his time be

Let f(x) = 1/x^2 (a) use the definition of the derivatve to find f'(x). (b) find the equation of the tangent line at x=2