Find the 13th term of the binomial expansion of: (2x-4)^21 : (

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 3, 4+2i, 1+(sqrt)7 the answer is supposed to be: f(x)=x(^5)-13x(^4)+60x(^3)-82x(^2)- 144x+360 what am i doing wrong?

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319