+13 
i need help solving each of these. Please help me understand how to do each problem as I actually want to know how to solve it and get the correct answer. please give steps if possible and thank you
+2668 404) We need to transform x, which we can do by substituting x=x−1. This way, it becomes f((x−1)+1)=f(x)
So, it would now become (x−1)2+3(x−1)+5.
+2668 405) First, we need to find x, so we have the equation: 4x+3=−9. Solve for x, and substitute this value into the function.
+2668 406) We know that x2−6x equals either 9 or -9. Solve for x in both cases, and plug them back in to make sure they work.
