Question

resolva a equação irracional √x+2=10

Answer 1

√x+2=10

√x=10 -2

√x=8

√x²=8²

x =64

Se for √(x+2)=10

√(x+2)²=10²

x+2=100

x=98

Answer 2

√x + 2 = 10
√x = 10 - 2 
√x = 8  ⇒ √x² = 8²
  x = 64