4. which expression represents “5 less than twice x”?
(1) 2(5 - x)
(2)2(x - 5)
(3) 2x – 5
(4) 5 – 2x

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 =

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.