Show that the following equalities are true for any values of a and b:

(60 points) explain this in detail

3questions show how you solved the problem 1. subtract & simplify (–y2 – 4y – 8) – (–4y2 – 6y + 3) 2.multiply and simplify 2x2y3z2 · 4xy4x2 3.multiply and simplify (x – 4) (x2 – 5x – 6)

Jeremy wants to determine the number of solutions for the equation below without actually solving the equation.