Factorise 12x+y^2-z^2-6xy+20yz-6zx
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Answered by
24
Answer:
factorise -
formula -
I gave u hint do it by your self if any doubt don’t hesita to answer on m any question
one more hint while factorising take
thankyou
Answered by
25
Answer:
Answer:
9x2 + y2 + z2 - 6xy + 2yz - 6zx
= (3x)2 + y2 + z2 - 2 3x y + 2yz - 2 z 3x
= (3x - y - z)2
{Using (a-b-c)2=a2+b2+c2-2ab+2bc-2ca}
When x=1,y=2 and z=-1,
9x2 + y2 + z2 - 6xy + 2yz - 6zx
= (3x - y - z)2
= [3(1) - 2 - (-1)]2
= (3 - 2 + 1)2 = 22 =
Btw am using pc so B.io mat baat noi kr skte -_-
and yeh brainly ke log bade mtlbi hai itne bade bade answer do aur bdle mai brainlist noi bnate -_-
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