Ben played at a friends house for 2 hours 35 minutes. later he played at a park he played for a total of 3 hours and 52 minutes how long did he play at the park?

77 minutes or 1 hour and 17 min

Step-by-step explanation:

2 h and 35 min would =155

3h and 52 min would =232

232-155=77

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.