Can anyone me start this? its about factoring trinomials

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.