What is the x intercept of f(x)=4x^2-7x-15

2(n-1)+4n=2(3n-1)n=0no solutioninfinitely many solutions n= - 4 !

Find the solution of system of equation y= x-4 y=4x+2

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.