(b-7) ² using sutible Identities
Answers
Answered by
0
Answer:
b−7)
2
=(b−7)(b−7)
=b(b−7)−7(b−7)
=b
2
−7b−7b+49
=b
2
−14b+49
Answered by
2
Step-by-step explanation:
(a-b)²= a²-2ab+b²
(b)²-2(b) (7)+(7)²
b²-2(7b)+49
b²-14b+49
The answer is b²-14b+49
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