(b-7)² I want answer
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b² + 49 -14b
according to ( a-b) ² = a²+b²-2ab
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Answer:
b²-14b+49
Step-by-step explanation:
using the formula (a-b)² = a²-2ab+b²
(b-7)²= b²-2×(b×7)+(7)²
b²-14b+49
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