Question

5x²+ 90x - 1800 = 0
Can I get the solution ​

Answer 1

5x^2+90x-1800 = 0

5x^2+90x = 1800

5x^2+x = 1800÷90

= 20

x^2+x=20÷5

= 4

x^2+x = x^3

x^3 = 4

or x^2+x=4

x+x = √4

(x+x)= x^2

(√4 = 2)

x^2 = 2

x = √2

x = 1.41

maybe its wrong...but i have done this way