x²+4y²+9z²-4xy+12yz-6zx. factorise
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Answered by
35
x²+4y²+9z²+2(-2xy+6yz-3zx)
=(x-2y-3z)²
(a-b-c)²=a²+b²+c²+2(-ab+bc-ca)
=(x-2y-3z)²
(a-b-c)²=a²+b²+c²+2(-ab+bc-ca)
Answered by
24
It can be re-written as
=(-x)² + (2y)² + (-3z)² -2(-x)(2y) -2(2y)(-3z) -2(-3z)(-x)
We can observe it is the formula ( a + b + b )²
So, it can be factorized as (-x + 2y -3z)²
Brainliest please ?
=(-x)² + (2y)² + (-3z)² -2(-x)(2y) -2(2y)(-3z) -2(-3z)(-x)
We can observe it is the formula ( a + b + b )²
So, it can be factorized as (-x + 2y -3z)²
Brainliest please ?
CoolestCat015:
can i get brainliest harsh bro ?
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