The graph shows distances traveled by two bikers. which biker travels at a greater rate and what is that rate? a. biker 1 8 mi/h b. biker 2 10 mi/h c. biker 1 10 mi/h d. biker 2 8 mi/h. pls .

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.

2y+y=5

add 2y and y