Question

Resuelve: (x – 2)(x – 1) ≥ (x + 3)(x + 1)

Answer 1

Respuesta:

$x ^ 2 - x - 2x + 2 ^ 2\geq x ^2 + x + 3x + 3 ^ 2\\\\x ^ 2 - 3x + 4 \geq x ^ 2 + 4x + 9\\f ( x ) x ^ 2 = 2x - 3x + 4 \geq f ( x ) x ^ 2 = 2x + 4x + 9\\x = 4 \geq 6x + 9= x = 9 / 6 = 1.5\\4 \geq 1.5$

Explicación paso a paso: