Is y5 -25 difference of squares

Which of the following is the correct equation for this function? a. y= (x+4)(x+2) b. y=x^2+ 3x – 2 c. y+ 2 = – 2(x+3)^2 d. y+ 2 = 2(x+3)^2

Find the distance between (0,5) & (-4,2)

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).