Question

3.(x+1)^2=48 me ayudan. ​

Answer 1

Respuesta:

X= 3, - 5

Explicación paso a paso:

$3 {(x + 1})^{2} = 48 \\ 3( {x}^{2} + 2(x)(1) + {1}^{2} ) = 48 \\ 3( {x}^{2} + 2x + {1}^{2} ) = 48 \\ 3 {x}^{2} + 6x + 3 = 48 \\ 3 {x}^{2} + 6x + 3 - 48 = 0 \\ 3 {x}^{2} + 6x - 45 = 0 \\ 3x \: \: \: \: \: \: \: \: \: \: \: \: - 9 \\ x \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 5 \\ \\ 3x - 9 = 0 \\ 3x = 9 \\ x = \frac{9}{3} \\ x = 3 \\ \\ x + 5 = 0 \\ x = - 5$