+129852 Remember that
Area = Width * Length ......so we have this.....
[8x^3 + 10x^2 - x - 2] = [2x + 1] * Length ....so...dividing both sides by 2x + 1 , we have
[ 8x^3 + 10x^2 - x - 2 ] / [2x + 1 ] = Length
We can find the length with some polynomial long division (yuck !!!)
4 x^2 + 3x - 2
2x + 1 [ 8x^3 + 10x^2 - x - 2 ]
8x^3 + 4x^2
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6x^2 - x
6x^2 + 3x
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-4x - 2
-4x - 2
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0
The Length is the polynomial shown in red ⇒ "C"
