57,909,000 in scientific notation

7.909 * 10 ^6

Step-by-step explanation:

7,909,000

We need a number between 1 and less than 10 to make scientific notation

a* 10^b

Move the decimal 6 places to the left  b is positive since it moves to the left

a = 7.909 and b = 6

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.

whats the question?

step-by-step explanation: