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Grade 128 grade maths

Simplify.
(4m + 5n)^2 + (5m + 4n)^2
Simplify.
(4m + 5n)^2 + (5m + 4n)^2

Profile image of Pawan Prajapati
5 Years agoGrade 12
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1 Answer

Profile image of Harshit Singh
5 Years ago
Dear Student

(4m + 5n)^2 + (5m + 4n)^2
= 16m^2+ 40mn + 25n^2+ 25m^2+ 40mn + 16n^2
= 41m^2+ 80mn + 41n^2

Thanks