(b-7) square
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Answered by
0
Answer:
(a-b)2
a2 + b2 - 2ab
so in your question
b2 + 49 - 2(b*49)
hope it helps :D
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Answered by
0
Answer:
(b)^2+(-7) ^2+2×b×7
= b^2+49+14b.Answer
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