X^4 + x^3 + x^2 + x = 0
x(x^3 + x^2 + x + 1) = 0
x[x^2(x + 1) + 1(x + 1)] = 0
x(x + 1)(x^2 + 1) = 0 ⇔ x = 0 or x + 1 = 0 or x^2 + 1 = 0
x = 0 or x = -1 or x^2 = -1 -false
Answer: x= 0 or x = -1.
Answer:
a function
Step-by-step explanation:
a function is where u plug something in and get another thing out. the entire function is dependent on another independent variable
It will take them 9 minutes to wash a car if they work together! take half of each time
Answer:
$14.40
Step-by-step explanation:
a. (18) (80%) = (18) (.80) = $14.40 is discount
b. (x)(.80)= discount price
c. 18/80% =$22.50 is regular price
we are given
Since, we have to solve for x
so, we will isolate x on anyone side
step-1: Add both sides 27
step-2: Divide both sides by 7
now, we can simplify it
................Answer
