Which quadratic equation is written in standard form? A. (X+13)(x-1)=0. B. x^2-x=3.
C. 2x^2+16x+30=0. D. 4x^2-3=x/2+5

7. the area of the playing surface at the olympic stadium in beijing isof a hectare. what area will it occupy on a plan drawn to a scaleof 1: 500?

Find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible

Write as a product: ac^2–ad+c^3–cd–bc^2+bd