Answer:
<h2>x=2 , x = 6</h2>
Step-by-step explanation:
x² – 8x = 20 ⇌ x² – 2(4)x = 4 + 16 ⇌ x² – 2(4)x - 16 = 4 ⇌ (x - 4)² = 4
⇌ x - 4 = 2 or x - 4 = -2 ⇌ x = 6 or x = 2
Hey there!

squared would equal = 4096.
Your correct answer would be
. . .

Hope this help you.
~Jay
You deduct the number to the right by 1