4 2/5 + k = −3 2/11

What is k?

Step-by-step explanation:

4⅖ = 22/5 = 242/55

-3 2/11 = -35/11 = -175/55

k = -175/55 - 242/55 = -417/55 = -7 32/55

answer: was that a question or answer?

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.