The volume of a rectangular prism is represented by the function x^3 + 11x^2 + 20x − 32. The width of the box is x − 1, while the height is x + 8. Find the expression representing the length of the box.
do you know formula of volume for a rectangular prism ?
V = area of base time height
formula for area of a rectangle ?
ahh ok
can you solve it now ?
@Laylalyssa
no
so than what mean this above wrote ,,ok" ?
nvm that
please help me
so to get the expression of length you need divide the expression of volume by the product of expressions of height and width ok ?
multiplie the x-1 by x +8 and what you get so divide the expression of volume by this expression what you get
@supie
ok
questions ?
nope
ok hnd cya
x^3 + 11x^2 + 20x − 32 divided by 8?
(x^3 + 11x^2 + 20x − 32) divided by [(x − 1)( x + 8)] = ?
first multiplie (x-1)(x+8)= ?
= x^2 +8x -x -8 = x^2 +7x -8 and now just you need divide the volume expression by this x^2 +7x -8 and so will get the expression of the length
do you can ?
(x^3 + 11x^2 + 20x − 32) : (x^2 +7x -8) = ?
do you know the way ?
is it x - 4?
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