Question

d) x 2 + 2x − 1 = 34

Answer 1

Respuesta:

d) x 2 + 2x − 1 = 34

x2+2x−35=0

(1)⋅x2+(2)⋅x+(−35)=0

x=−(2)±(2)2−4⋅(−35)−−−−−−−−−−−−−√2

x=−2±4−(−140)−−−−−−−−−−√2

x=−2±144−−−√2

x=−2±(12)2

x1=102=(2)⋅(5)(2)=5

x2=−142=(2)⋅(−7)(2)=−7