Question 435688
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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   | {{{( x^m )( x^n ) = x^( m + n )}}}

what is the surface area of a 2x^2 by 4x^3 by x^3
Assuming it is a rectangular solid = 
{{{ 2(2x^2* 4x^3) + 2(2x^2*x^3) + 2(4x^3*x^3)}}} =  20x^5 + 8x^6