Question

решите уравнение (3x+1)²=(x+2)²
не дискриминантом ​

Answer 1

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

Ответ: 0.5, -0.75