6x² 11x - 35 0. In simple words it is the equation that holds two variables which look like the following. The name Quadratic comes from quad meaning square because the variable gets squared like x 2.
Moreover the standard quadratic equation is ax 2 bx c where a b and c are just numbers and a cannot be 0.
When the quadratic is a perfect square trinomial. H 3 14t 5t 2. 7x 2 9x 2 0 is a quadratic equation because this equation is in the form ax 2 bx c 0 where a 7 b 9 and c 2 and the variable is a second degree variable. And the ball will hit the ground when the height is zero.