Question

Pls help! Must show all your working!

Answer 1

`\huge\text{Hey there!}`

`\mathsf{x^3 + 2x = 40}`

`\large\text{Subtract 40 to both sides:}`

`\mathsf{x^3 + 2x - 40 = 40 - 40}`

`\large\text{Simplify it:}`

`\mathsf{x^3 + 2x - 40 = 40 - 40}`

`\mathsf{x^3 + 2x - 40= 0}`

`\large\text{If you're familiar with the cubic formula use that to solve this portion:}`

`\large\textsf{If you're unfamiliar with the cubic formula we will study that another}\\\large\textsf{time whenever you're ready to understand it }\heartsuit`

`\mathsf{x = 3.22524}`

`\mathsf{x \approx 3}`

`\huge\text{Therefore, your answer should be: \boxed{\mathsf{3.22524}}}\huge\checkmark`

~
`\frak{Amphitrite1040:)}`