You can identify a quadratic expression or second-degree expression because its an expression that has a variable thats squared and no variables with powers higher than 2 in any of the terms. It is represented in terms of variable x as ax2 bx c 0. For a parabolic mirror a reflecting telescope or a satellite dish the shape is defined by a quadratic equation.
Xx - 2 4 upon multiplying and moving the 4 becomes x² - 2x - 4 0 x2x 3 12 upon multiplying and moving the 12 becomes 2x² - 3x - 12 0 3xx 8 -2 upon multiplying and moving the -2 becomes 3x² 24x 2 0.
You can identify a quadratic expression or second-degree expression because its an expression that has a variable thats squared and no variables with powers higher than 2 in any of the terms. The numbers a b and c are the coefficients of the equation and may be distinguished by calling. Iii Complete the square by adding the square of one-half of the coefficient of x to both sides. It is represented in terms of variable x as ax2 bx c 0.