Solve for x in the equation 3x-5=2x²

What are the coordinates of the hole in the graph of the function f(x) ? f(x)=x2−9x−3 enter your answer in the boxes.

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?