Question

(х+2)(х-2)-х(х-3)=0 решить уравнение

Answer 1

$( {x}^{2} - 4) - x(x - 3) = 0 \\ {x}^{2} - 4 - {x}^{2} + 3x = 0 \\ - 4 + 3x = 0 \\ 3x = 4 \\ x = \frac{4}{3} = 1 \frac{1}{3}$