Question

x² -4x -12x =0
Faça utilizando Bhaskara ​

Answer 1

Resposta:

S={6,2}

Espero ter ajudado!

Answer 2

$x {}^{2} - 4x - 12x = 0 \\ x {}^{2} - 16x = 0 \\ \boxed{a = 1 \: , \: b = - 16 \: , \: c = 0} \\ x = \frac{ - b ± \sqrt{b {}^{2} - 4ac } }{2a} \\ x = \frac{ - ( - 16) ±\sqrt{( - 16) {}^{2} - 4 \: . \: 1 \: . \: 0} }{2 \: . \: 1} \\ x = \frac{16 ± \sqrt{( - 16) {}^{2} - 0} }{2} \\ x = \frac{16 ± \sqrt{( - 16) {}^{2} } }{2} \\ x = \frac{16 ± 16}{2} \\ x = \frac{16 + 16}{2} = \frac{32}{2} = \boxed{\boxed{\boxed{16}}} \\ x = \frac{16 - 16}{2} = \frac{0}{2} = \boxed{\boxed{\boxed{0}}}$

att. yrz