Question

ajudem aí por favor????

Answer 1

Resposta:

S={0.1888,−21.1888}

Explicação passo-a-passo:

x=−(63)±(63)2−4×(3)×(−12)

−−−−−−−−−−−−−−−−−−−−

√2×(3)⇔

x=−63±3969−(−144)

−−−−−−−−−−−−−

√6⇔

x=−63±4113

−−−−

√6⇔

x=−63+64.13276∨x=−63−64.13276⇔

x=1.13276∨x=−127.13276

S={0.1888,−21.1888}