Which number is in the relations domain?

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

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

Joline is solving the equation 0=x^2-5x-4 using the quadratic formula which value is the negative real number solution to her quadratic equation round to the nearest tenth if necessary