Which operation is NOT closed for polynomials? A)
(x2 – 3x + 5) + (5x? – 8x + 4)
B)
(4x3 - 2x + 6) – (x2 + 3x + 2)
(x2 – 3x + 5)(x? - 4x + 4)
D)
(x2 + 3x + 5)
(X® + 4x + 2)

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3

What is the least common multiple for 6 and 8? what is the least common multiple for 4 and 12 ? what is the least common multiple for 11 and 12? what is the least common multiple for 3 and 6?

(fog)(x) if f(x)=x^2- 4 and g(x)=x^2 + 2 x, f(g(x))= f(x^2+2x) (x^2+2x)^2-4 (x^2+2x)(x^2+2x)-4 (x^4+2x^3+5x+4x^2)-4 x^4+2x^3+4x^2+5x-4 what am i doing wrong