(m-5) (m+5)
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Answered by
1
Answer:
(m-5)(m+5)=m²-5²
using identity (a-b)(a+b)=a²-b²
m²=25
m=+-5
Answered by
2
Step-by-step explanation:
=(m-5) (m+5)
=m(m+5) -5(m+5)
=m²+5m-5m-25 (+5m and -5m get cancelled= 0)
=m²-25 is the answer
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