Determine the solution set of (x-4)^2 = 12

Which system of linear inequalities is graphed? can somebody pleasssse

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

Given the quadratic function f(x)=3x^2-24x+49 a. use “completing the squares” to convert the quadratic function into vertex form b. state the vertex c. find the x and y intercepts d. graph the function