1.

49 m² +14 omn + 100n², Factorise it​

Answer»

>m 2 +14m+49=0= > m {}^{2} + 7M + 7m + 49 = 0=>m 2 +7m+7m+49=0= > m(m + 7) + 7(m + 7) = 0=>m(m+7)+7(m+7)=0= > (m + 7)(m + 7)=>(m+7)(m+7)



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