Answer:
(x - 4)² - x² = 8 (D)
Step-by-step explanation:
I can observe immediately that choice D will cancel out both x² terms. Notice that:
(x - 4)² - x² = 8
(x² - 8x + 16) - x² = 8
- 8x + 16 = 8
8x - 8 = 0
It becomes a linear equation, so choice D is the correct answer.
Hope this helps!
~~DeanGD20
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Answers & Comments
Answer:
(x - 4)² - x² = 8 (D)
Step-by-step explanation:
I can observe immediately that choice D will cancel out both x² terms. Notice that:
(x - 4)² - x² = 8
(x² - 8x + 16) - x² = 8
- 8x + 16 = 8
8x - 8 = 0
It becomes a linear equation, so choice D is the correct answer.
Hope this helps!
~~DeanGD20