algebra 2
posted by Anonymous .
a rectangle has an area of ( x3+x210x+8) square meters, and a width of (x+4) meters. Find its length.

algebra 2 
Reiny
You probably meant to say
x^3+x^210x+8
since area = l x w
x^3+x^210x+8 = length(x+4)
length = (x^3+x^210x+8)/(x+4)
= x^2  3x + 2
(I used synthetic division, you could also use long algebraic division)
Respond to this Question
Similar Questions

Geometry
Can you check these multiple choice questions thanks. 1. What is the length of a rectangle that has an area of 20 square meters and a perimeter of 18 meters. A. 10 meters B. 2 meters C. 5 meters D. 9 meters Answer: B 2. Find the minimum … 
algebra
The area of a rectangle is 21 square meters. Find the length and width of the rectangle if its length is 4 meters greater than its widith. using Area of a rectangle = (width)(Length) 
Algebra 2
1. A rectangle has an area of x3 + x2 – 7x + 2 square meters and a width of x – 2 meters. Find its length. 
calculus
1. A rectangle has a constant area of 200 square meters and its length L is increasing at the rate of 4 meters per second. a. Find the width W at the instant the width is decreasing at the rate of .4 meters per second. b. At what rate … 
calculus
1. A rectangle has a constant area of 200 square meters and its length L is increasing at the rate of 4 meters per second. a. Find the width W at the instant the width is decreasing at the rate of .4 meters per second. b. At what rate … 
prealgebra
Can you help me figure this? The area of a rectangle is 14 square meters. Find the length and width of the rectangle if it's length is 5 meters greater than its width. Use an equation and the formula for the area of a rectangle=(width)(length). 
Geometry
A rectangle has an area of 6 square meters. What will be the area of the rectangle if each side length is increased by a factor 5? 
Algebra
The length of a rectangle is two meters less than twice the width. If the area of the rectangle is 222 square meters, find the dimensions 
Math
A rectangle is 40 meters longer than its width if its length were increased by 10 meters and its width would be decreased by 5 meters its area would be increased by 190 square meters. Find the dimensions 
Math
The length of a rectangle is 5 meters more than twice the width, and the area of a rectangle is 42 square meters. Find the length and width of the rectangle.