Question

2X²-X-1=0 a resposta?????

Answer 1

Resposta:

22−−1=0

2x^{2}-x-1=02x2−x−1=0

a=2

=−1

b=−1

=−1

c=−1

=−(−1)±(−1)2−4⋅2(−1)√2⋅2

SOLUÇÃO

x=1

x=1/2