Question

Solve. x^2 = 10x – 20

x = 2 ± 2 sqrt 5

x = 5 ± 2 sqrt 5

x = 10 ± sqrt 10

x = 5 ± sqrt 5

Answer 1

Move everything over to the left side-->x^2 - 10x + 20 = 0
Using the quadratic formula, u get-->x = 5 ± sqrt 5