B) Do it
1) Expand : (b - 7)²
Answers
Answered by
1
Answer:
= (b-7)^2
= b^2 + 49 - 14b
i hope this helps you mark it as brainiest
Answered by
1
Step-by-step explanation:
(a-b)²=a²-2ab+b²
(b-7)²=b²-14b+49
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