Question

F(x) =2x³-5x= - 1; 3;

Answer 1

$2 \times { - 1}^{3} - 5 = - 7$
$2 \times {3}^{3} - 5 = 49$
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Answer 2

It appears that you have provided an equation: F(x) = 2x³ - 5x = -1. To solve this equation for the values of x that satisfy it, you can follow these steps:

1. Rewrite the equation in standard form, setting it equal to zero: 2x³ - 5x + 1 = 0

2. This is a cubic equation. To solve it, you can use numerical methods or approximate solutions. In this case, I'll use an online calculator to find the solutions.

After calculating, the solutions to the equation are approximately:

x ≈ -1.129, x ≈ 0.315, and x ≈ 1.184

These are the values of x that satisfy the equation F(x) = 2x³ - 5x = -1.