What is a+2 divided by 2 = -1?

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 =

Which two undefined geometric terms always describe figures with no beginning or end?

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b