Question

Resolva a equação do 2 grau = x² + 36 = 100​

Answer 1

$x² + 36 = 100 \\ {x}^{2} = 100 - 36 \\ {x}^{2} = 64 \\ x = \frac{ + }{} 8 \\ x = - 8 \\ x = 8 \\ x1 = - 8 \: \: \: \: \: \: x2 = 8$

Answer 2

x² + 36 = 100

x² + 36 - 100 = 0

x² - 64 = 0

( X - 8 ) . ( X + 8 ) = 0

x - 8 = 0

x + 8 = 0

x = 8

x = - 8

x1 = -8

X2 = 8