Question

( a + 1 ) x 2 + ( 2 a + 7 ) x + a + 4 = 0

Answer 1

Respuesta:

$(a + 1) {x}^{2} + (2a + 7)x + a + 4 = 0 \\ {x}^{2} + x = \frac{ - 4 - a}{(a + 1)(2a + 7)}$