Solve the system of equations y=x+3 y=x^2-2x-1

275/20 simplified (lmbo it told me to add more characters)

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square