Tolong caranya juga yaaa :)

[tex] \frac{1}{x1 ^{2} } + \frac{1}{x2 ^{2} } = \frac{x2 ^{2} +x1^{2} }{x1^{2}x2 ^{2} } = \frac{(x1 + x2) ^{2} - 2x1x2 }{(x1x2) ^{2} } = \frac{( - 6) ^{2} - 2( - 6)}{( - 6) ^{2} } = \frac{36 + 12}{36} = \frac{48}{36} [/tex]

x1 × x2=-6
x1 + x2 = -6
48/36=4/3

maaf jika salah semoga membantu