expand the following (4x + 3y - z)²
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you just try using this method substitute your question and find the answer
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Step-by-step explanation:
We know that,
(a+b+c)²= a²+b²+c²+ 2ab+ 2bc+2ca
Therefore,
(4x+3y-z)²={4x+3y+(-z) }²
= (4x)²+(3y)²+(-z)²+2xy+
2y(-z)+2(-z)x
=16x²+9y²+z²+2xy-2yz-2zx
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