4.what is the quotient written in scientific notation 3x10^20/4x10^5

Solve each quadratic equation by factoring and using the zero product property. x^2 - 8x + 30 = 3x

Will mark brainliest for correct answer! i have been on this problem for an hour and can't find the answer. i'm begging here! incase you cant read the instructions in the picture because of too much or too little lighting: note: enter your answer and show all the steps that you use to solve this problem in the space provided. write a list of steps that are needed to find the measure of b. provide all steps as clear as possible, !

How would you describe the difference between the graphs of f(x) = 2x2 and g(x) = -2x2?