SOLUTION: Explain, in complete sentences, how you would completely factor 20x2 – 28x – 48 by using the grouping method. How would you check your factors for accuracy?

Algebra ->  Linear-equations -> SOLUTION: Explain, in complete sentences, how you would completely factor 20x2 – 28x – 48 by using the grouping method. How would you check your factors for accuracy?      Log On


   

Question 637398: Explain, in complete sentences, how you would completely factor 20x2 – 28x – 48 by using the grouping method. How would you check your factors for accuracy?
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

20x%5E2+%96+28x+%9648......replace 28x+ with -48x%2B20x
20x%5E2-48x%2B20x-48...group first and third term together, and secon and fourth term together

%2820x%5E2%2B20x%29-%2848x%2B48%29
20x%28x%2B1%29-48%28x%2B1%29
%2820x-48%29%28x%2B1%29
4%285x-12%29%28x%2B1%29