Question

Factorizar:

x² + (x + 1)²= 85​

Answer 1

Respuesta:

(x + 7)(x - 6) = 0

Explicación paso a paso:

x² + (x + 1)² = 85​

x² + x² + 2x + 1 = 85​

2x² + 2x + 1 - 85​ = 0

2x² + 2x - 84​ = 0

2(x² + x - 42)​ = 0

x² + x - 42 = 0

x          + 7

x          - 6

(x + 7)(x - 6) = 0