find and correct (l-9)²=l²-81
Answers
Answered by
0
Step-by-step explanation:
l²+81-18l
should be in RHS
shivajimusale2008:
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Answered by
3
Answer:
l²-18L+81.
Step-by-step explanation:
(l-9)²=?
(a-b)=a²-2ab+b² use this identity
l²-2(l)(9)+9²
l²-18L+81. capital l is used for understanding
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