Math, asked by LazyOne, 1 year ago

expand (a-2b-3c)^2

Plz solve it

Answers

Answered by Tarun2906

Heya....!!!!
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_Here is Ur Answer_
(a-2b-3c)^2 = a^2 +2b^2 - 4ab + 9c^2 - 12abc
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Hope it may help U

Plzz mark it as brainliest....

LazyOne: can you pls show all the steps?

LazyOne: i will mark you as brainliest

Tarun2906: Okk

Tarun2906: We know that (a-b)^2 = a^2 +b^2 - 2ab. Here, let assume that (a-2b ) be a and (3c) be b. So, (a-2b)^2 +3c^2 - 2(a)(-2b)(3c) = a^2 + 4b^2 - 4ab + 9c^2 --12abc

Tarun2906: Now plzz mark it as brainliest

Tarun2906: Here is right answer ( In answer it is wrong )Sorry for it !!!

Answered by Nishika20

Answer:

=> (a)^2+(-2b)^2+(-3c)^2+2*a*(-2b)+2*(-2b)*(-3c)+2*(-5c)*a

=> a^2+4b^2+9c^2-4ab+12bc-6ac

hope it helps us!!

mark as brainliest!!

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expand (a-2b-3c)^2 Plz solve it

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expand (a-2b-3c)^2

Plz solve it