Question

son los valores 1+raiz de 3x+7 =x

Answer 1

$1 + \sqrt{3x + 7} = x \\ 1 + \sqrt{3 x} \times \sqrt{7} = x \\ (1 + \sqrt{3x} \times \sqrt{7} ) {}^{2} =( x ) {}^{2} \\ {1}^{2} + ( \sqrt{3x} ) {}^{2} \times ( \sqrt{7} ) {}^{2} = x {}^{2} \\ 1 + 3x \times 7 = x {} {}^{2}$