Question

Найдите корень уравнения:

Answer 1

Ответ:

0,25

Объяснение:

$(6x - 1)(6x + 1) - 4x(9x + 3) = - 4 \\ 36x {}^{2} - 1 - 36x {}^{2} - 12 x = - 4 \\ - 1 - 12x = - 4 \\ - 12x = - 4 + 1 \\ - 12x = - 3 \\ x = \frac{3}{12} = 0.25$

десятичной дробью : 0,25

Answer 2

Объяснение:

$(6x - 1)(6x + 1) - 4x(9x + 3) = - 4 \\ (6x {}^{2} ) - 1 - 4x(9x + 3) = - 4 \\ 6 {}^{2} x {}^{2} - 1 - 4x(9x + 3) = - 4 \\ 36x {}^{2} - 1 - 4x(9x + 3) = - 4 \\ 36x {}^{2} - 1 - 36x {}^{2} - 12x = - 4 \\ - 1 - 12x = - 4 \\ - 12x = - 4 + 1 \\ - 12x = - 3 \\ x = - 3 \div ( - 12) \\ x = \frac{1}{4 } = 0.25$