To solve the equation 5x3=−1355x3=−135, you would first use the operation of by to get the equation x3=−27x3=−27. You would then use the inverse operation of x3x3, which is taking the of both sides. That leaves us solution(s) for x. The solution(s): x =

-3

first use the operation?

My apologies for the confusion in my previous response. To solve the equation 5x^3 = -135, the first step would be to isolate x^3 by dividing both sides by 5:

5x^3 = -135
x^3 = -135/5
x^3 = -27

Next, you can find the cube root of both sides to solve for x:

x = ∛(-27)
x = -3

Therefore, the solution to the equation 5x^3 = -135 is x = -3.

what operation is used first

To solve the equation 5x^3 = -135, the first operation you would use is division. You need to divide both sides of the equation by 5 to isolate x^3.

The steps would be as follows:

1. 5x^3 = -135
2. Divide both sides by 5: x^3 = -135/5
3. Simplify: x^3 = -27

After dividing by 5, you have successfully isolated x^3 as -27, and then you can take the cube root to find the value of x.