Question

4.x-8(8x+20)=4x(4x+8)qual a resposta

Answer 1

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vamos lá

4.x - 8 (8x + 20) = 4x (4x + 8)

- 16² - 92x - 160 = 0

x[1,2] = $\frac{ - ( - 92) - \sqrt{( - 92) {}^{2} } - 4x - 16x - 160}{2x - 16}$

x[1,2] = $\frac{1}{8}i \sqrt{111} - 2 \frac{7}{8}, - \frac{1}{8}i \sqrt{111} - 2 \frac{7}{8} ≈$

$- 2,875 + 1,316956719106592 \: i \: , \\ - 2,875 - 1,316956719106592i$