Question

x2 + x -7= 5 . Faça essa conta com a formula de baskara .

Answer 1

Olá!!!!

x2+x−12=0  

(1)⋅x2+(1)⋅x+(−12)=0

x=−(1)±(1)2−4⋅(−12)−−−−−−−−−−−−−√2

x=−1±1−(−48)−−−−−−−−−√2

x=−1±49−−√2

x=−1±(7)2

x1=62=(2)⋅(3)(2)=3

x2=−82=(2)⋅(−4)(2)=−4

Espero ter te ajudado!!!