Question

(x² − 8)² + x² − 8 = 20.
ask your answer
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Answer 1

Answer:

$x { }^{2} = 41$

Step-by-step explanation:

$x {}^{2} + x {}^{2} = 20 + 72 \\ 2x {}^{2} = 92 \div 2 \\ x {}^{2} = 41$

Answer 2

Answer:

x = - √3

the value of x is -√3