PLEAS HEL What is an equation you could write to solve the proportion, 15/6 = 25/x ? Explain your reasoning?

below

Step-by-step explanation:

15/6=25/x

We move all terms to the left:

15/6-(25/x)=0

Domain of the equation: x)!=0

x!=0/1

x!=0

x∈R

We add all the numbers together, and all the variables

-(+25/x)+15/6=0

We get rid of parentheses

-25/x+15/6=0

We calculate fractions

There is no solution for this equation

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.

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