evaluate : (2a + 3b + 4c) power 2 + (2a – 3b + 4c) power 2 + (2a + 3b – 4c) power 2​

1 thought on “evaluate : (2a + 3b + 4c) power 2 + (2a – 3b + 4c) power 2 + (2a + 3b – 4c) power 2​”

1. Answer:

   Step-by-step explanation:

   (x+y+z)

   2

   =x

   2

   +y

   2

   +z

   2

   +2xy+2yz+2zx [Identity]

   Here,

   x=2a

   y=3b

   z=4c

   Putting Values in Identity, We get :

   ⇒ (2a+3b+4c)

   2

   =(2a)

   2

   +(3b)

   2

   +(4c)

   2

   +2(2a)(3b)+2(3b)(4c)+2(4c)(2a)

   =4a

   2

   +9b

   2

   +16c

   2

   +12ab+24bc+16ca

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