Question

$x { }^{2} + 5x + 6 = 0$
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Answer 1

Resposta:

${x}^{2} + 5x + 6 = 0 \\ \\ \Large \boxed{\Delta = {b}^{2} - 4ac} \\ \\ \Delta = {5}^{2} - 4(1)(6) \\ \\ \Delta = 25 - 24 \\ \\ \Delta = 1 \\ \\ \Large \bf Bhaskara \\ \\ \Large \boxed{\dfrac{ - b \pm \sqrt{ \Delta} }{2a}} \\ \\ \frac{ - 5 \pm \: \sqrt{1} }{2(1)} \\ \\ \frac{ - 5 \pm \: 1}{2} \\ \\ x1 = \frac{ - 5 + 1}{2} = \\ \\ \frac{ - 4}{2} = \Large \boxed{ \green{ \bf \: - 2}} \\ \\ x2 = \frac{ - 5 - 1}{2} = \\ \\ \frac{ - 6}{2} = \Large \boxed{ \green{ \bf \: - 3}} \\ \\ \Large \boxed{ \underline{ \blue{ \bf \: Bons \: Estudos!} \: \bf \: 16/05/2021}}$