Pepper jackie has 7.5 bags of mulch to cover 12 yds of edible flower beds. if she wants to distribute the mulch evenly over the beds, about how many bags will she need to use for each square yard?

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.

6x = 48

i hope this . 6 cards each and a total of $48. dvide each side by 6 and you will have your answer.