L=(5x^2-4x-3) w=(x^2-x+1) h=(3x^2-5)
use distributive property for multipication
Lw:
5 x^2(x^2-x+1) = 5x^4-5x^3+5x^2
-4x(x^2-x+1)= -4x^3+4x^2-4x
-3(x^2-x+1)= -3x^2 +3 x -3
add
Lw = 5 x^4 - 9 x^3 + 6 x^2 -x - 3
for side areas
2 Lw = 10x^4-18x^3+12x^2-2x-6
do the same for top and bottom and ends and add for area
he dimensions of a rectangular prism are (5x squared - 4x - 3) (x squared - x + 1) cm by (3x squared - 5) cm. Find a polynomial which represents
1. the total surface are of the prism.
2. the total length of the edges of the rectangular prism
3. the volume of the prism.
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