Question

7x+xsquare-18=0
Plshelp

Answer 1

1.37001342

Explanation:

Given, 7x + x² - 18 = 0

7x + x² = 7x³

7x³ - 18 = 0

Transposing -18 to RHS (it will become +18)

7x³ = 0 + 18

7x³ = 18

x³ = 18/7 = 2.57142857

x = Cube root of 2.57142857
x = 1.37001342