8. m2 + 34mn - 72n2
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Answered by
2
Step-by-step explanation:
m^2+17mn-84n^2
m^2+21mn-4mn-84n^2
m(m+21n)-4n(m+21n)
(m-4n)(m+21n)
Answered by
0
Answer:
ans is ( 4m 4-n ) ( m+ 21 n)
hope that this will be help you
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