expand using idetntiy (4x - 3y - 2z )^2
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6
property
(a+b+c)^2=(a)^2+(b)^2+(c)^2 +2ab+2bc+2ac
(a+b+c)^2=(a)^2+(b)^2+(c)^2 +2ab+2bc+2ac
Answered by
24
Hii there!!!
Indentity
{ ( a-b-c )^2= a^2 + b^2 + c^2 - 2(a)(b)
+2 (b)(c) -2(a)(c) }
( 4x - 3y -2z )^2
=> (4x)^2 + (3y)^2 + (2z)^2 - (2)(4x)(3y)
+ (2)(3y)(2z) - (2)(2z)(4x)
=> 16x^2 + 9y^2 + 4z^2 - 24xy +12yz -16xz
Hope it helps....
Indentity
{ ( a-b-c )^2= a^2 + b^2 + c^2 - 2(a)(b)
+2 (b)(c) -2(a)(c) }
( 4x - 3y -2z )^2
=> (4x)^2 + (3y)^2 + (2z)^2 - (2)(4x)(3y)
+ (2)(3y)(2z) - (2)(2z)(4x)
=> 16x^2 + 9y^2 + 4z^2 - 24xy +12yz -16xz
Hope it helps....
FehranKhan:
thanks for the answer btw that's 16x^2 and 4z^2
oh sorry.. I have edited now
kk no prob
plz mark brainliest
thanks
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