expand (-3a+4b-5c)^2
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Answered by
88
Heya!
Here is yr answer......
=> (-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
Hope it hlpzzz...
Here is yr answer......
=> (-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
Hope it hlpzzz...
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