SOLUTION: Multiply as required and collect terms ( x – 4)(2x^2 + 4) + ( x + 4)(x^3 – 1) – ( x^2 – x – 1)

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Multiply as required and collect terms ( x – 4)(2x^2 + 4) + ( x + 4)(x^3 – 1) – ( x^2 – x – 1)       Log On


   

Question 189998: Multiply as required and collect terms
( x – 4)(2x^2 + 4) + ( x + 4)(x^3 – 1) – ( x^2 – x – 1)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
%28x-4%29%282x%5E2+%2B+4%29+%2B+%28x+%2B+4%29%28x%5E3-1%29-%28+x%5E2-x-1%29+ Start with the given expression


Expand


2x%5E3+%2B+4x+-+8x%5E2+-16+%2B+x%5E4+-+x+%2B4x%5E3+-+4+-+x%5E2+%2B+x+%2B+1+ Distribute


x%5E4%2B6x%5E3+-+9x%5E2+%2B+4x++-19+ Combine like terms.


So