7(-2 - 5n) solve
how do you do this equation can you me ?

-14-35n

Step-by-step explanation:

First do distributive property and you multiply 7 by -2 and by -5n

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.

step-by-step explanation:

what grade level is this? need to know so i can look in my old textbooks!