What is the largest value of K such that the following equation, has at least one real root? 4x^2 − 20x + K = 0

PLS ANSWER

Lines p and q intersect. find the value of b. show your work. cite any theorems you use.

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?

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4