What is the positive solution to this equation 4x^2+12x=135 this is using the quadratic formula. ​

Sketch one cycle if the cosine function y=2cos2theta

Піf x = y and y= z, which statement must be true? оа. -x = -2 b. x= z ос. —x = 2 od. 2= x

The graph of a function f(x)=(x+2)(x-4). which describes all of the values for which the graph is negative and increasing? all real values of x where x< -2 all real values of x where -2