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11 questions from this quiz
Start with given info, work step-by-step
Writing conclusion first
n2n^2n2 where nnn is an integer
Proving expressions are always positive
They are never negative
Take half coefficient of xxx
(x−a)2+b(x - a)^2 + b(x−a)2+b
(x−4)2≥0(x - 4)^2 ≥ 0(x−4)2≥0, so adding 2 gives ≥ 2
Factor and cancel common terms
Forgetting to state variables are integers
With a clear restatement of what proved
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