evaluate ( -x + 2y - 3z) 2
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(a+b+c)²=a²+b²+c²+2ab+2bc+2ac
a=-x
b=2y
c=-3z
Now put values.
=(-x)²+(2y)²+(-3z)²+2(-x)(2y)+2(2y)(-3z)+2(-x)(-3z)
=x²+4y²+9z²-4xy-12yz+6xz..
Here is the answer to your question may be this will help you
Thankuu
a=-x
b=2y
c=-3z
Now put values.
=(-x)²+(2y)²+(-3z)²+2(-x)(2y)+2(2y)(-3z)+2(-x)(-3z)
=x²+4y²+9z²-4xy-12yz+6xz..
Here is the answer to your question may be this will help you
Thankuu
Answered by
10
your answer. hope the helps..
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