find the suitable identity of m²-21m+38
Answers
Answered by
0
Answer:
(m
2
−n
2
)(m
2
+n
2
)
Using identity: (a−b)(a+b)=a
2
−b
2
Therefore,
(m
2
−n
2
)(m
2
+n
2
)
=(m
2
)
2
−(n
2
)
2
=m
4
−n
4
Answered by
2
Answer:
the identity is a²+bx+c
Step-by-step explanation:
m²-21m+38
m²-19m-2m+38
m(m-19)-2(m-19)
(m-19)(m-2)
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