Question

.) (2x – 4)² – 5 = 31,
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Answer 1

5

Step-by-step explanation:

(2x – 4)² – 5 = 31

Adding 5 to both sides gives

(2x – 4)² – 5+5 = 31+5

(2x – 4)² = 36

(2x – 4) = √36

2x-4 = 6

Adding 4 to both sides gives

2x-4+4=6+4

2x= 10

Divide through by 2

2x/2 = 10/2

X= 5.