For example:Now you try: x² + 5x + 3x² + x³ - 5 + 3[You should get x³ + 4x² + 5x–2]Order of OperationsPEMDAS–Please Excuse My Dear Aunt Sally, remember that fromAlgebra class?It tells the order in which we can complete operations whensolving an equation.First, complete any work inside PARENTHESIS, thenevaluate EXPONENTS if there are any.Next MULTIPLY or DIVIDEnumbers before ADDING or SUBTRACTING.For example:Insidethe parenthesis,look for more order ofoperation rules -PEMDAS.Wedon’t have anyexponents, but we doneed to multiplybefore we subtract,then add inside theparenthesesbeforewemultiply by negative 2on the outside.Simplify:-2[3 - (-2)(6)]= -2[3-(-12)]= -2[3+12]= -2[15]= -30Simplify:x² + 10x–6–5x + 4= x² + 5x–6 + 4= x² + 5x–2There are many terms to lookat! Let’s start with x².Thereare no other terms with x² inthem, so we move on.10xand 5x are like terms, so weadd theircoefficientstogether.10 + (-5) = 5, so wewrite5x.-6 and 4 are alsolike terms, so we can combinethem to get-2.Isn’t thesimplified expression muchnicer?