Question Simplify the expression 8σ2−45σ Evaluate σ2×8−45σSolution 8σ2−45σ Show Solution Factor the expression σ(8σ−45) Evaluate σ2×8−45σUse the commutative property to reorder the terms 8σ2−45σRewrite the expression σ×8σ−σ×45Solution σ(8σ−45) Show Solution Find the roots σ1=0,σ2=845Alternative Form σ1=0,σ2=5.625 Evaluate σ2×8−45σTo find the roots of the expression,set the expression equal to 0 σ2×8−45σ=0Use the commutative property to reorder the terms 8σ2−45σ=0Factor the expression More Steps Evaluate 8σ2−45σRewrite the expression σ×8σ−σ×45Factor out σ from the expression σ(8σ−45) σ(8σ−45)=0When the product of factors equals 0,at least one factor is 0 σ=08σ−45=0Solve the equation for σ More Steps Evaluate 8σ−45=0Move the constant to the right-hand side and change its sign 8σ=0+45Removing 0 doesn't change the value,so remove it from the expression 8σ=45Divide both sides 88σ=845Divide the numbers σ=845 σ=0σ=845Solution σ1=0,σ2=845Alternative Form σ1=0,σ2=5.625 Show Solution