1.

Write (3a+4b+ 5c) in expanded form

Answer»

(3a + 4b+ 5c)2= (9a​2+ 16b2+ 25c2+ 2(12ab +20bc + 15ca)

As (a+b+c)2= a2+ b2+ c2+ 2(ab + bc+ ca)= 9a2+ 16b2+ 25c2+ 24ab + 40bc + 30ca



Discussion

No Comment Found