SOLUTION: Second post; Given that (3x-a)(x-2)(x-7)= 3x^3-32x^2+81x-70. There shouldn't have been a = after 32x^2 sorry about. Please check my answer again. which is 3.

Algebra ->  Rational-functions -> SOLUTION: Second post; Given that (3x-a)(x-2)(x-7)= 3x^3-32x^2+81x-70. There shouldn't have been a = after 32x^2 sorry about. Please check my answer again. which is 3.       Log On


   

Question 44126This question is from textbook Algebra and Trigonometry with Analytic geometry
: Second post; Given that (3x-a)(x-2)(x-7)= 3x^3-32x^2+81x-70. There shouldn't have been a = after 32x^2 sorry about. Please check my answer again. which is 3. This question is from textbook Algebra and Trigonometry with Analytic geometry

Answer by adamchapman(301) About Me  (Show Source):
You can put this solution on YOUR website!
Below is the graph of y=3x^3-32x^2+81x-70
+graph%28+300%2C+200%2C+-10%2C+10%2C+-100%2C+100%2C+3x%5E3-32x%5E2%2B81x-70%29+
Below is the graph of y=(3x-a)(x-2)(x-7) when a=3
+graph%28+300%2C+200%2C+-10%2C+10%2C+-100%2C+100%2C+%283x-a%29%28x-2%29%28x-7%29%29+
Note they are exactly the same, so (3x-a)(x-2)(x-7)= 3x^3-32x^2+81x-70 is true when a=3.
You are correct. Well done!
I hope this helps
P.S. I am trying to start up my own homework help website. I would be extremely grateful if you would e-mail me some feedback on the help you received to adam.chapman@student.manchester.ac.uk