Question

4.Determinar as raízes do polinômio ( x + 2).( x- 2) URGENTEEEEEEW

Answer 1

Oie, Td Bom?!

>>> Determinando as raízes do polinômio.

$(x - 2) \: . \: (x - 2) = x {}^{2} - 2 {}^{2} = x {}^{2} - 4$

$x {}^{2} - 4 = 0$

$x { }^{2} = 4$

$x =± \sqrt{4}$

$x = ±2$

S $x _{1} = - 2 \: , \: x_{2} = 2$]

Att. Makaveli1996