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Question
Write in the expanded form: (-2x + 3y + 2z)2
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Solution
(-2x + 3y + 2z)2 = ((-2x) + 3y + 2z)2
`= (-2x)^2 + (3y)^3 + (2z)^2 + 2(-2x)(3y) + 2(3y)(2z) + 2(2z)(-2x)`
`= 4x^2 + 9y^2 + 4z^2 - 12xy + 12yz - 8xz`
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