evaluate using suitable identities
(b-7)²
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Answered by
1
Answer:
formula = (a-b)= a² -2ab + b²
= (b-7)²= b² -14b +49
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Answered by
0
Answer:
(b-7)2
=(b-7) (b-7)
=b(b-7)-7 (b-7)
=b2 -7b -7b+49
=b2 -14b +49
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