Identify Common Factors: Identify common factors in all terms.The polynomial is 3x3−36x2+96x. We can see that each term has a common factor of 3x. We will factor out 3x from each term.Calculation: 3x(x2−12x+32)
Factor Quadratic Expression: Factor the quadratic expression.We now have the quadratic expression x2−12x+32, which we need to factor. We are looking for two numbers that multiply to 32 and add up to −12.Calculation: The numbers are −8 and −4 because (−8)×(−4)=32 and (−8)+(−4)=−12.
Write Factored Form: Write the factored form of the quadratic expression.Using the numbers found in Step 2, we can write the quadratic expression as (x−8)(x−4).Calculation: x2−12x+32=(x−8)(x−4)
Combine Factored Quadratic: Combine the factored quadratic with the common factor factored out in Step 1.We now multiply the common factor 3x by the factored quadratic expression to get the completely factored form of the original polynomial.Calculation: 3x(x−8)(x−4)
More problems from Find derivatives of using multiple formulae