Hi

F	First terms

O	Outside terms

I	Inside terms

L	Last terms

3x^2+30x+63 = 3(x^2+10x+21) = 3(x+7)(x+3)

8x^3-58x^2-48x = 2x(4x^2-29x-24) = 2x(4x+3)(x-8)

8x^2+2x-21 = (2x-3)(4x+7) length would be (4x+7)



(-3x^1y^1)(-6x^2y^1) = 18x^3y^2   | 



what is the surface area of a 2x^2 by 4x^3 by x^3

Assuming it is a rectangular solid = 

 =  20x^5 + 8x^6

 

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