Question

X elevado 2+12x+11=0 ​

Answer 1

x² + 12x + 11 = 0

∆ = b² - 4ac

∆ = 144 - 44

∆ = 100

√∆ = 10

x = ( - b ± √∆)/2a

x = - 12 ± 10 / 2

x' = - 1

x'' = - 11