Worth tons of ! this test is super important so do not give me guesses be at least 95% sure of your answer. answer all parts for brainliest let f(x)=7x^3-2x-12 and g(x)=-3x^3-8x^2+10x. what is the function rule for (f+g)(x) let f(x)=6-5x and g(x)=6x^2+x. what is the function rule for (fg)(x) let x^2+18x=44. what values make an equivalent number sentences after completing the square? x^2+= what is the solution to the system of linear equations? 2x+4y=20 3x+2y=26 solve the system of equations (there is more than one correct solution) 14x+y=-4 y=3x^2-11x-4 factor. x^2-6x+8 enter your answer in the box x^2-6x+8= ( , ) ( , ) let f(x)=x^2-6x- 27 enter the x-intercepts of the quadratic function in the boxes. answer all of these parts for lots of points and brainliest! : )