Solve for n:

n/12 = 3/4

A. n = 12
B. n = 15
C. n = 18
D. n = 9

n = 9

Step-by-step explanation:

here's the solution :-

=》

=》n = 3/4 × 12

=》n = 3 × 3

=》n = 9

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.