Question

(√? - 1 )² = 8 - √28​

Answer 1

Step-by-step explanation:

(√x -1)^2=8-2√7

(√x -1)^2=8-2√7+1-1

(√x-1)^2=7-2√7+1

(√x-1)^2=(√7-1)^2

√x-1=√7-1

√x=√7

Answer 2

Step-by-step explanation:

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