Question

30 POINTS!!!

Please help me i think i did it wrong, i got

2.2571... but i think is wrong

Answer 1

-2.289....

Explanation:

1) The first thing we must do is try to get x by itself

3x^3 + 1 = -35

3x^3 = -36

x^3 = -12

2) Now all we have to do is take the cube root of x and -12 to get your answer (this part you'll have to do on a calculator)

x = -2.289...

Answer 2

x ≈ - 2.289

Explanation:

Given

- 35 = 3x³ + 1 ( subtract 1 from both sides )

- 36 = 3x³ ( divide both sides by 3 )

- 12 = x³ ( take the cube root of both sides )

`\sqrt[3]{-12}` = x , thus

x ≈ - 2.289 ( to 3 dec. places )