Question

Me ayudan a resolver las siguientes ecuaciones:
(x²-9)÷10=4
x²-3x= -2

Answer 1

(x²-9)÷10=4 |x| = √(4×10 + 9) |x| = √49  x = ±7 ———— x²-3x= -2 x²-3 +2 = 0 x = (3 ± 1)/2 x₁ = 2 x₂ = 1

Answer 2

(x²-9)÷10=4

|x| = √(4×10 + 9)

|x| = √49  x = ±7

————

x²-3x= -2

x²-3 +2 = 0

x = (3 ± 1)/2

x₁ = 2

x₂ = 1

espero que les sirva