Lisa bought six dog toys. each dog toy costs the same amount. she spent a total of $10.50. write an expression that represents the situation. use d to represent the cost of each dog toy.

Each dog toy costs $1.75.

Step-by-step explanation:

6x=10.5

x=10.5/6

x=1.75

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.

a .4y4

hope this !