A. Solve the quadratic equation (x-15)^2 = 28
B. The vertex of y = x^2 + 4x + 5 is:
C. Find the value of c such that... is a perfect square.
D. Solve the equation for x by using the quadratic formula ....
Quadratic equations are investigated. The solution is detailed and well presented. The response received a rating of "5/5" from the student who originally posted the question.