SOLUTION: Given that (3x-a)(x-2)(x-7)=3x^3-32x^2+81x-70, determine the value of a. Thanks!

Algebra ->  Algebra  -> Polynomials-and-rational-expressions -> SOLUTION: Given that (3x-a)(x-2)(x-7)=3x^3-32x^2+81x-70, determine the value of a. Thanks!      Log On

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Question 44811This question is from textbook
: Given that (3x-a)(x-2)(x-7)=3x^3-32x^2+81x-70, determine the value of a.
Thanks!This question is from textbook

Answer by rapaljer(4551) About Me  (Show Source):
You can put this solution on YOUR website!
This one looks intimidating, but it is much easier than it looks!!

If you expanded the left side of this equation, you would have a polynomial in which the last times last times last would be (-a)(-2)(-7), which would equal the number term on the right side, which is -70.

It would be -14a = -70, so a+=%28-70%29%2F%28-14%29+=+5.

R^2 at SCC