What is the sum of the polynomials
(-x2 + 9) + (-3x2 - 11x + 4)

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

If 24 people have the flu out of 360 people, how many would have the flu out of 900. choose many ways you could use proportion that david would use to solve this problem

It is given that the quadratic equation hx²-3x+k=0, where h and k are constants, has roots [tex] \beta \: and \: 2 \beta [/tex]express h in terms of k