Answer:
x=1
Step-by-step explanation:
(15x^3- 2)^3= 2197
Take the cube root of each side
(15x^3- 2)^3 ^ 1/3= 2197^ 1/3
15x -2 = 13
Add 2 to each side
15x^3- 2+2= 13+2
15x^3 =15
Divide each side by 15
15x^3 /15 =15/15
x^3 =1
Take the cube root of each side
x^3 ^1/3 = 1^1/3
x=1
9514 1404 393
Answer:
(0, -8), (1, -11), (-1, -5)
Step-by-step explanation:
It is convenient to solve for y and choose values of x.
y = -3x -8 . . . . . subtract 3x from both sides of the equation
Now, any integer value of x you choose will result in an integer value of y. Often, it is convenient to choose values near zero.
x = -1, y = -3(-1) -8 = 3 -8 = -5 . . . . solution: (-1, -5)
x = 0, y = -3(0) -8 = -8 . . . . solution: (0, -8)
x = 1, y = -3(1) -8 = -11 . . . . solution: (1, -11)
Answer:
no solution
Step-by-step explanation:
Subtract 7 from both sides of the inequality:
|x| +7 -7 < 4 -7
|x| < -3
This has <u>no solution</u>, because an absolute value cannot be negative.
The digit in the tenths place is 8.
