Mr. Erickson just had his condo appraised to find out its value. According to the appraiser, the condo is currently worth $354,161. That is 15% lower than the condo was worth when he bought it several years ago. What was the value of the condo then?

$416,660

Step-by-step explanation:

X = original price of condo

15% of X = 0.85x = $354,161

x = 354,161/0.85

x = $416,660

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.