Question

x²(5x+3)-6x(x²-4)=3x(8+x)

Answer 1

Решение:

${x}^{2} (5x + 3) - 6x( {x}^{2} - 4) = 3x(x + 8)$

$- {x}^{3} + 3 {x}^{2} + 24x = 3x(x + 8)$

$- {x}^{3} + 3 {x}^{2} + 24x = 3 {x}^{2} + 24x$

$- {x}^{3} = 0$

${x}^{3} = 0$

$x = 0$