What is the value of x if 5x +55 = 35?

x = - 4

Step-by-step explanation:

5x + 55 = 35 ( subtract 55 from both sides )

5x = - 20 ( divide both sides by 5 )

x = - 4

x=-4

Step-by-step explanation:

5x-4 is -20+55 is 35

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.

the answer is c.

step-by-step explanation: