Expand :(3a + 4b – 5c )²
Answers
Answered by
18
=> (-3a+4b-5c)²
It is in the form of--
(a+b+c)² = a²+b²+c²+2ab+2bc+2ca
a=-3a , b=4b , c=-5c
=> (-3a)²+(4b)²+(-5c)²+2(-3a)(4b) +2(4b)(-5c)+2(-5c)(-3a)
=> 9a²+16b²+25c²-24ab-40bc+30ca
Answered by
2
Answer:
go away hahahahaaaaaaaaaaaaaaaaaaaaaaa
Similar questions