Expand the expression. 1/3(2/5-2/

a. 2/15 - 2/3w

b. -2/9w+2/15

c.-2/9w+3/5

d.2/9w-2/15

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.

a

step-by-step explanation:

48+y= ?

the y is the variable and the ? could also be a variable