Answer:
a^2-1
Step-by-step explanation:
(a+1)(a-1)
=a^2-1
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Let x be the number of days you need to work.
Your goal is to achieve at least 10 000 steps.
x + 5274 ≥ 10 000
x ≥ 10 000 - 5274
x ≥ 4726
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You need to take at lest another 4726 steps to achieve the goal.
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Two different teaching methods would be visual learning and written learning
