Kenya is working on a math puzzle. Clues are found inside four different boxes. Each box has an equation written on top, as shown below. Box A: 15x + 7 = 3(3 + 5x) - 2
Box B: 7x - 3 - 5x = 2x + 5
Box C: 2x + 17 + x = x - 1
Box D: 6 + 5x - 4x + 3x - 2x = 2x - 2

Kenya is told that the equation on top of the box that contains her next clue has exactly one solution. Which box contains the next clue?Immersive Reader
(1 Point)

2 x t divided by n

step-by-step explanation:

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.