Cześć!
Odpowiedź:
x = ⁸/⁷ = 1 ⅐
Szczegółowe wyjaśnienie:
[tex](x - 2) \cdot(4 + x) = x(x - 5) \\ 4x + x {}^{2} - 8 - 2x = x {}^{2} - 5x \\ 4x - 8 - 2x = - 5x \\ 2x - 8 = - 5x \\ 2 x + 5x = 8 \\ 7x = 8 \\ \boxed{x = \frac{8}{7} = 1 \frac{1}{7} }[/tex]
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Verified answer
Cześć!
Odpowiedź:
x = ⁸/⁷ = 1 ⅐
Szczegółowe wyjaśnienie:
[tex](x - 2) \cdot(4 + x) = x(x - 5) \\ 4x + x {}^{2} - 8 - 2x = x {}^{2} - 5x \\ 4x - 8 - 2x = - 5x \\ 2x - 8 = - 5x \\ 2 x + 5x = 8 \\ 7x = 8 \\ \boxed{x = \frac{8}{7} = 1 \frac{1}{7} }[/tex]