solve (b-2)^2 by the formula of (a-b)^2
Answers
Answered by
1
Answer:
b^2-2*2*b+4
b^2-4b+4
Answered by
0
Answer:
(b-2)^2 = b^2- 2×b×2 + 2^2
= b^2 - 4b + 4
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