factorise
(x-2y+3z)²
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Answered by
2
Answer:
Step-by-step explanation:
x-2y-3z)²
(x-2y-3z)²=x²+4y²+9z²-4xy+12yz-6zx
Step-by-step explanation:
/* We know the algebraic identity:
(a+b+c)²=a²+b²+c²+2ab+2bc+2ca */
Here ,
(x-2y-3z)²
= [x²+(-2y)+(-3z)]²
= x²+(-2y)²+(-3z)²+2×x(-2y)+2×(-2y)(-3z)+2×(-3z)x
= x²+4y²+9z²-4xy+12yz-6zx
Therefore,
(x-2y-3z)²
=x²+4y²+9z²-4xy+12yz-6zx
Answered by
6
Hiiiii
Your answer is
X^2 +4Y^2+9Z^2-4xy-12yz+6zx
Hope it will help you
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