SOLUTION: what is 3x^2+30x+63 factored what is 8x^3-58x^2-48x facrored what is (-3xy)(-6x^2y) what is the surface area of a 2x^2 by 4x^3 by x^3 what is the length of a width of 2x-3 in a

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: what is 3x^2+30x+63 factored what is 8x^3-58x^2-48x facrored what is (-3xy)(-6x^2y) what is the surface area of a 2x^2 by 4x^3 by x^3 what is the length of a width of 2x-3 in a      Log On


   



Question 435688: what is 3x^2+30x+63 factored
what is 8x^3-58x^2-48x facrored
what is (-3xy)(-6x^2y)
what is the surface area of a 2x^2 by 4x^3 by x^3
what is the length of a width of 2x-3 in and the area of 8x^2+2x-21 in^2

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

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 | %28+x%5Em+%29%28+x%5En+%29+=+x%5E%28+m+%2B+n+%29
what is the surface area of a 2x^2 by 4x^3 by x^3
Assuming it is a rectangular solid =
+2%282x%5E2%2A+4x%5E3%29+%2B+2%282x%5E2%2Ax%5E3%29+%2B+2%284x%5E3%2Ax%5E3%29 = 20x^5 + 8x^6