Question

(x - 1)(x + 1)(x2+ 1) = 10x2– 10;​

Answer 1

Ответ:

$(x - 1)(x + 1)( {x}^{2} + 1) = 10 {x}^{2} - 10 \\ ( {x}^{2} - 1)( {x}^{2} + 1) = 10( {x}^{2} - 1) \\ {x}^{2} + 1 = 10 \\ {x}^{2} = 9 \\ x = \frac{ + }{} 3$

Answer 2

Ответ:

+-3

Объяснение:

(х2-1)(х2+1)=10(х2-1) |:(х2-1)

х2+1=10

х2=9

х=+-3